Genotype 'AS' is favored over genotypes SS and AA because it is more fit. Fitness is a measure of how well a genotype can survive and reproduce in the environment it inhabits.
The relative fitness of a genotype is the ratio of its observed to expected numbers. In this example, the observed and expected numbers for genotype 'SS' are 4 and 17 respectively. Therefore, the relative fitness of 'SS' is 4/17 = 0.235.
This means that the genotype 'AS' is more fit than genotype 'SS' because its relative fitness (166/127 = 1.309) is higher. The relative fitness of genotype 'AA' is 1030/1056 = 0.977, which is lower than that of genotype 'AS'. This indicates that genotype 'AS' is more fit than both genotypes 'SS' and 'AA'.
Overall, the genotype 'AS' is favored over genotypes 'SS' and 'AA' because it is more fit. This is evidenced by the relative fitness of each genotype, which shows that genotype 'AS' has a higher fitness than both 'SS' and 'AA'.
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How are somatic cells different from gametes? (1 point)
O Somatic cells contain half the number of chromosomes.
O Somatic cells are sex cells.
O Somatic cells do not go through cell division.
O Somatic cell mutations are not passed to the next generation.
Mark all examples of evolutionary adaptation:
Group of answer choices
O the cryptic appearance of the moth Abrostola trigemina, which looks like a broken twig.
O the long, broad wings of the red-tailed hawk that allow it to sustain a gliding flight over open country while it searches for prey with its keen eyes.
O the rounded body shape of the sargassum crab which resembles the floats of the brown alga Sargassum in which it lives.
O the appearance of the leafy sea dragon (a sea horse) which looks so much like the kelp (seaweed) in which it lives that it lures prey into the seeming safety of the kelp forest and then eats them.
There are many examples of evolutionary adaptation that can be seen in nature. These adaptations help organisms to survive in their environment by camouflaging themselves from predators, gaining advantages in the search for prey, and blending in with the background.
Evolutionary adaptation is the process by which organisms become adapted to their environment. Examples of evolutionary adaptations can be seen in many organisms, from moths to hawks and from crabs to sea horses.
One example is the cryptic appearance of the moth Abrostola trigemina, which looks like a broken twig. This helps the moth to hide from predators, as its camouflage will make it difficult to be detected.
Another example is the long, broad wings of the red-tailed hawk. These wings allow the hawk to maintain gliding flight over open country so that it can search for prey with its keen eyes.
A third example is the rounded body shape of the sargassum crab, which resembles the floats of the brown alga Sargassum in which it lives. This body shape helps the crab to blend in with its environment and stay hidden from predators.
The final example is the appearance of the leafy sea dragon, which looks so much like the kelp (seaweed) in which it lives that it lures prey into the seeming safety of the kelp forest and then eats them. This is an excellent example of a type of camouflage called 'mimicry', where an organism takes on the appearance of something else in its environment in order to deceive predators.
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What are two things which the Sun sends out into the Solar System which have negative effects and what are those effects ? How does solar activity change over time?
Answer:
The Sun sends out two types of particles that can have negative effects in the Solar System: solar wind and solar flares. Solar wind is a stream of charged particles that is constantly emitted from the Sun's atmosphere. These particles can affect the orbits of planets and other objects in the Solar System, and can also interfere with satellite and radio communications on Earth. Solar flares are intense bursts of radiation that are emitted from the Sun's surface. They can cause disruptions to satellite and radio communications, and can also pose a danger to astronauts and other people in space.
Solar activity, including the emission of solar wind and solar flares, varies over time. The Sun follows an approximately 11-year cycle of activity, during which the number of sunspots and other indicators of solar activity rise and fall. At the peak of the cycle, the Sun is more active and is more likely to produce solar flares and other forms of solar activity. At the low point of the cycle, solar activity is lower and the Sun is less likely to produce these effects.
the nernst equation is used to determine the value of ecell for an electrochemical reaction under conditions; the difference between ecell and eocell is a function of . multiple choice question.
The Nernst equation is used to determine the value of ecell for an electrochemical reaction under non-standard conditions; The difference between ecell and eocell is a function of cell potential of standard and non-standard state.
The Nernst equation is an equation that compares an atom's or ion's capacity to accept one or more electrons (reduction potential) under any conditions to that measured under standard test conditions (standard reduction potentials) of 298K and one molar or atmospheric pressure.
The Nernst equation is used to determine the voltage of an electrochemical cell or the concentration of one of the cell's components.
Eocell is the standard state cell potential, which means that the condition is met for solutes or 1 bar for gases. Ecell is the cell potential in a non-standard state. To calculate Ecell using Eocell, use the Nernst equation.
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radish flowers may be red, purple, or blue. a cross between a red-flowered plant and a blue-flowered plant yields all-purple offspring. the flower color trait in radishes is an example of which of the following?
The flower color trait in radishes is an example of incomplete dominance. The red and blue alleles interact to produce a third phenotype, which is a blend of the phenotypes of the two parents.
Radish flowers may be red, purple, or blue, and their flower color is an example of incomplete dominance. Incomplete dominance is a type of genetic interaction in which one allele (or version) of a gene is not completely dominant over the other allele. In this case, the cross between a red-flowered plant and a blue-flowered plant yields all-purple offspring because the red and blue alleles interact with one another, producing a phenotype (flower color) that is different than either of the parental phenotypes.
In complete dominance, a single allele will always dominate the other, with the result that the phenotype of the offspring is always the same as the phenotype of the parent with the dominant allele. In incomplete dominance, the phenotype of the offspring is a blend of the phenotypes of the two parents, rather than being identical to one of the parents. In the case of the radish flowers, the red and blue alleles interact with one another to produce a purple phenotype.
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indirect evidence that dna could be diverse enough to be the genetic material came from studies of different organisms. which of the following was discovered?
DNA considered as the genetic material helps in the discovery of a)protein. So, correct option is a.
DNA is a natural macromolecule that is made out of two polynucleotide chains that curl around one another to frame a twofold helical design, which conveys the genetic guidelines for the turn of events, working, development and proliferation of all living beings and numerous infections.
Properties of Genetic Material
It ought to be fit for putting away hereditary data.It ought to be fit for reproducing with high proficiency in progressive ages.It ought to shape the reason for the transmission of inherited characters that it controls.It ought to be engaged with quality activity, which brings about a definitive articulation of the attributes inside the organic entity.It ought to have the option to go through a transformation that makes variety among life forms.It should show an extremely wide variety in structure.Hence correct option is a
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(Complete question) is:
indirect evidence that dna could be diverse enough to be the genetic material came from studies of different organisms. which of the following was discovered?
a)protein
b)cells
c)nucleus
d)fats
ATP is required for RNA-Pol to move down dsDNA, hydrolysis of ATP provides the energy to unwind the strands in front of RNAP while rewinding them behind. O True O False
True. ATP is required for RNA-Pol to move down dsDNA, hydrolysis of ATP provides the energy to unwind the strands in front of RNAP while rewinding them behind.
ATP hydrolysis is a catabolic reaction process in which chemical energy stored in high-energy phosphoanhydride bonds in adenosine triphosphate (ATP) is released by producing work in the form of mechanical energy after splitting these bonds, for example, in muscles.
When one phosphate group is eliminated by trying to break a phosphoanhydride bond, a process known as hydrolysis occurs, releasing energy and converting ATP to adenosine diphosphate (ADP). When phosphate is eliminated from ADP to form adenosine monophosphate, energy is also released (AMP).
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The colonists enjoyed many methods to proven. themselves and grew accustomed to their increased freedoms. When the British began to restricted these economic and political freedoms in the 1760s, the colonists began angry, which eventually lad to the American Revolution
Examine Prime Minister Robert waylay actions in the left column of the chart. Move FOUR unintended consequences of his actions into the right column of the chart.
Control of Laws
Developed a separate identify from Britain
Developed self-governance
Less economic reliance on Britain
Signed military treaties with foreign nations
Increased taxes on imported goods from Britain
The four unintended consequences of Prime Minister Robert waylay actions include:
Developed a separate identify from BritainLess economic reliance on BritainIncreased taxes on imported goods from BritainDeveloped self-governanceWhat is self governance?
Self governance is described as the ability of a person or group to exercise all necessary functions of regulation without intervention from an external authority.
Self-governance is important in any democracy as it's purpose it to prevent governments from becoming autocratic and preserves the powers of individuals.
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A biochemist has discovered a new membrane protein in a eukaryotic cell. To determine the type of membrane protein, she decides to perform laboratory tests on the cell. She discovers that the protein is an integral membrane protein. Select the experimental scenarios that correctly support the finding that the protein is an integral membrane protein? Try to dissolve the protein out of the membrane with an aqueous buffer, then try to dissolve the protein with a nonpolar solvent. If the protein is solubilized in the nonpolar solvent but not in the aqueous buffer, it is probably an integral protein. Try to dissolve the protein out of the membrane with an aqueous buffer, then try to dissolve the protein with a detergent solution. If the protein is solubilized in the detergent solution but not in the aqueous buffer, it is probably an integral protein. Try to dissolve the protein out of the membrane with an aqueous buffer at low pH, then try to dissolve the protein with an aqueous buffer at neutral pH. If the protein is solubilized in the buffer at low pH but not in the buffer at neutral pH, it is probably an integral protein. Try to dissolve the protein out of the membrane with an aqueous buffer containing a chelating agent that removes Ca²+, then try to dissolve the protein in an aqueous buffer without the chelating agent. If the protein is solubilized in the buffer with the chelating agent but not in the buffer without the chelating agent, it is probably an integral protein. Try to dissolve the protein out of the membrane with an aqueous buffer containing urea, then try to dissolve the protein in an aqueous buffer without urea. If the protein is solubilized in the buffer with urea but not in the buffer without urea, it is probably an integral protein.
Try to dissolve the protein out of the membrane with an aqueous buffer, then try to dissolve the protein with a nonpolar solvent. If the protein is solubilized in the nonpolar solvent but not in the aqueous buffer, it is probably an integral protein.
Large macro- and biomolecules consisting of one or more extended chains of amino acid residues are known as proteins. In living things, proteins perform a number of functions, such as catalysing metabolic processes, replicating DNA, reacting to stimuli, giving cells and organisms structure, and transporting substances. The primary way that proteins differ from one another is the arrangement of their amino acids, which is determined by the nucleotide sequence of their genes and typically allows a protein to fold into a certain 3D structure that controls its function.
The complete question is:
A biochemist has discovered a new membrane protein in a eukaryotic cell. To determine the type of membrane protein, she decides to perform laboratory tests on the cell. She discovers that the protein is an integral membrane protein. Select the experimental scenarios that correctly support the finding that the protein is an integral membrane protein?
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Label the parts of the neuron:
Axon, axon bulb, axon hillock, dendrite, myelin/Schwann cell, nucleus, node of Ranvier
A.
B.
Nerve cells, or neuronal cells, are the cells that process and distribute chemical and electrical information throughout the body. The nervous system's primary signaling unit is the neuron.
Are chemical and electrical signals carried by neurons?The nervous system's most important component is the neuron, or nerve cell. It communicates chemically as well as electrically. Information is transmitted through the movement of an electrical charge (also known as an impulse) within the neuron itself.
What else are neurons' cells called?The cells that are responsible for receiving sensory input from the external world, sending motor commands to our muscles, and transforming and relaying the electrical signals at every step in between are called neurons (also known as nerve cells) and are the fundamental units of the brain and nervous system.
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to culture the bacteria and obtain the protein product, the bacteria must grow. select the appropriate condition to determine if the plasmid has entered the e-coli bacterial cell.
The appropriate condition to determine if the plasmid has entered the e-coli bacterial cell is to check the nutrient broth to which ampicillin has been added.
E. coli bacteria are an example of a prokaryotic cell type. E. coli is a nonsporulating Gram-negative, facultative anaerobe coliform bacterium. Escherichia coli (E. coli) is a Gram-negative, rod-shaped, transcriptional anaerobic bacterium with cells that are typically 2.0 m long and 0.25-1.0 m in diameter. Theodor Escherich first described this microorganism in 1885. Most E. coli strains colonize the gastrointestinal tracts of humans and animals as part of the normal flora.
A plasmid is a small extrachromosomal DNA molecule that exists within a cell and can reproduce separately of chromosomal DNA. Plasmids are most commonly found in bacteria as circular, double-stranded DNA molecules; however, plasmids can also be found in archaea and eukaryotic organisms.
Meningitis (infection of the membranes that surround the brain and spinal cord) and infectious diseases of the throat, sinuses, lungs, reproductive organs, urinary tract, and gastrointestinal tract are all treated with ampicillin.
Staphylococcus, Streptococcus, Corynebacterium, Clostridium, Escherichia, Klebsiella, Shigella, Salmonella, Proteus, and Pasteurella are considered to be generally more vulnerable to ampicillin and amoxicillin, though many of these bacteria have attained resistance.
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Complete question :
Organisms share many conserved core processes and features, including transcription and translation using a uniform genetic code. Scientists have used these shared processes and features in biotechnology. For example, for the process of some transformations, a plasmid is constructed when a eukaryotic gene of interest is added with an antibiotic resistant gene such beta-lactamase, which is used for ampicillin resistance. This plasmid is then inserted into a prokaryotic bacterial cell, such as E-coli, through a transformation process that leads to the production of the product protein from the eukaryotic organism. To culture the bacteria and obtain the protein product, the bacteria must grow. Select the appropriate condition to determine if the plasmid has entered the E-coli bacterial cell.
mitochondria help create energy for the cell. which of the following is not an output of cellular respiration?
Pyruvate is not an output of cellular respiration. So, the correct option is (A).
What is Cellular respiration?Cellular respiration is defined as the process by which organic fuels are oxidized in the presence of an inorganic electron acceptor such as oxygen to produce large amounts of energy to drive the bulk production of ATP.
Cellular respiration which occurs in the cytoplasm and mitochondria of each cell of the body while glycolysis occurs inside the cytoplasm while the TCA cycle occurs inside the matrix of the mitochondria.
The products of cellular respiration are carbon dioxide and water and the chemical energy which is released in the form of ATP.
Thus, Pyruvate is not an output of cellular respiration. So, the correct option is (A).
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Your question is incomplete, most probably the complete question is
Mitochondria help create energy for the cell. which of the following is not an output of cellular respiration?
A. Pyruvate
B. Water
C. Glycogen
D. Glucose
A cloning vectors should include all of the following, except
a. a multiple-cloning site (MCS)
b. a selection marker
c. a promoter for bacterial expression
d. one or more origin of replication sites
A cloning vectors should include all of the following, except a promoter for bacterial expression.
A cloning vector is a plasmid that is used to insert a desired DNA sequence into bacteria in order for it to be cloned. A multiple cloning site with cleavage sequences for various restriction enzymes should be present in the vector, enabling the plasmid to be split and the target sequence implanted. Cloning vectors should also include selection markers, such as antibiotic resistance, to help identify bacteria which have taken up the plasmid. Eventually, the cloning vector must possess a replication origin in order to be replicated by the bacteria. The cloning vector, on the other hand, does not require a promoter for bacterial expression because the primary objective is to generate many replicas of the DNA molecule rather than to express it into protein.
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the hormone secreted by the thymus that stimulates the maturation of lymphocytes into t cells of the immune system is known as: thymition thymosin thyroxine thymosine submit
Thymosin is the hormone of the thymus, and it invigorates the advancement of sickness battling White blood cells.
Thymosin is a 5-Da polypeptide chemical discharged by the thymus organ. Thymosin α1 animates the improvement of forerunner Immune system microorganisms in the thymus to develop White blood cells.
It is utilized to treat chemotherapy-actuated immunosuppression and to improve the adequacy of flu and hepatitis B antibodies in immunocompromised patients.
Concentrates on various creature and human models demonstrate that thymosin assumes a part in the separation of various White blood cell subpopulations. The speculation introduced is that an ordinary insusceptible equilibrium relies vigorously on the presence of thymosin-initiated silencer or controller Lymphocytes.
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According to the data, as the size of the neuron increases, what happens to the conduction velocity? How does the data prove that?
Answer:
The conduction velocity increases.
Explanation:
The data proves that, since with each increase in diameter, the conduction velocity gets faster.
Brainliest, please!The National Park Service (NPS) has been monitoring the continued decline of
the wolf population on Isle Royale. Scientists have found that many of the wolves
inherit bad hips because of genetic inbreeding. The bad hips reduce their ability
to prey upon the moose.
7. What is the predator on Isle Royale?
8. What is the prey on Isle Royale?
9. How did the predator arrive on Isle Royale?
10. Explain why this is a good place for scientists to do a long term study.
7. The predator on Isle Royale is the wolf.
8. The prey on Isle Royale is the moose.
9. It is believed that the wolves on Isle Royale arrived on the island by crossing an ice bridge from the mainland during a period of low lake levels.
10. Isle Royale is a good place for scientists to do a long-term study of predator-prey dynamics because it is a relatively isolated island with a relatively small and stable population of wolves and moose.
What is NPS?The National Park Service (NPS) is a United States federal agency that is responsible for the management and conservation of the country's national parks, monuments, and other protected areas. The NPS was established in 1916 with the passage of the National Park Service Organic Act.
The agency's mission is to "preserve unimpaired the natural and cultural resources and values of the national park system for the enjoyment, education, and inspiration of this and future generations." To achieve this mission, the NPS works to protect and preserve the natural and cultural resources found within the national park system, as well as provide opportunities for the public to experience and learn about these resources. The NPS also works to ensure that the national park system is accessible and welcoming to all visitors.
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Dynamic cell seeding allows higher cell seeding efficacy to engineered 3D scaffolds therefore it is mostly preffered by the scientists. Fibroblasts tend to attach on the silicone tube wall but this stiuation is not appropriate for reching maximum cell seeding efficacy on a scaffold. Preventing cells for not to attach on silicone tube, applied force on a single fibroblast should exceed 6500 picoNewton (required minimum force). In the designed cell culture dynamic fibroblast seeding experiment, silicone tube inner diameter is 3.8 mm and fibroblasts surface area is 450 μm2. Please calculate the minimum flow rate as liter per minute of the fibroblasts included cell culture media through silicone tube to prevent fibroblasts adhesion on silicone tubes.
The minimum flow rate as liter per minute of the fibroblasts included cell culture media through silicone tube to prevent fibroblasts adhesion on silicone tubes is 769.210527 L/min.
What is the minimum flow rate about?To calculate the minimum flow rate of the fibroblasts-included cell culture media through the silicone tube, we have to use the following equation:
Flow rate (L/min) = (Force (pN) * Surface area (μm^2)) / (Viscosity * Inner diameter (mm))
In this case, the force applied on a single fibroblast should exceed 6500 picoNewtons, the surface area of the fibroblasts is 450 μm2, the viscosity of the cell culture media is typically around 0.5-1.5, and the inner diameter of the silicone tube is 3.8 mm. Plugging these values into the equation gives us:
Flow rate (L/min) = (6500 pN * 450 μm^2) / (1.0 * 3.8 mm)
= (2925000 pNμm^2) / (1.0 Pas * 3.8 mm)
= 769210.527 pNμm^2 / (Pas * mm)
= 769.210527 L/min
So the minimum flow rate of the fibroblasts-included cell culture media through the silicone tube to prevent fibroblast adhesion would be around 769.210527 L/min.
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Which of the following is a description of a resource that belongs to a country
with a high carrying capacity?
A. Food is brought in from other places.
B. Homes are small and house many people.
O C. Food is not always available.
D. Water comes directly from bodies of water. I
A marine biologist randomly tagged and measured sharks in the Atlantic Ocean to study their characteristics and habits. The sample included 150 hammerhead sharks, of which 60% measured more than 12 feet in length. Which of the following conclusions is best supported by the data?
O More than half of the sharks in the Atlantic Ocean are longer than 12 feet long.
O Approximately 40% of the shark population in the Atlantic Ocean is 12 feet long or less.
O Less than half of the hammerhead sharks in the Atlantic Ocean are longer than 12 feet long.
O Hammerhead sharks are among the longest sharks in the Atlantic Ocean.
A marine biologist randomly tagged and measured sharks in the Atlantic Ocean to study their characteristics and habits and concluded that more than half of the sharks in the Atlantic Ocean are longer than 12 feet long..
What are sharks afraid of?Sharks look for dolphins before dozing off, just way humans check under our beds for monsters. Yes, even the toughest kids on the underwater playground avoid swimming near dolphins.What attracts a shark to a human?Sharks can indeed detect very little amounts of blood in water. They are, however, only truly drawn to the blood and body fluids of fish and marine mammals, which are their natural prey, according to certain studies. Sharks are known to react most strongly to the odors given off by damaged or distressed prey, according to experiments done in the history.
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Lipid-soluble signaling molecules, such as aldosterone, cross the membranes of all cells but affect only target cells because
A. only target cells have enzymes that break down aldosterone.
B. only in target cells is testosterone able to initiate the phosphorylation cascade leading to activated transcription factor.
C. intracellular receptors are present only in target cells.
D. only target cells retain the appropriate DNA segments.
E. only in target cells is aldosterone able to initiate the phosphorylation cascade that turns genes on.
The reason behind aldosterone affect only target cells because C)intracellular receptors are present only in target cells. So, correct option is C.
Aldosterone is the principal mineralocorticoid steroid chemical delivered by the zona glomerulosa of the adrenal cortex in the adrenal gland. It is fundamental for sodium preservation in the kidney, salivary organs, sweat organs, and colon. It assumes a focal part in the homeostatic guideline of circulatory strain, plasma sodium (Na+), and potassium (K+) levels. It does so principally by following up on the mineralocorticoid receptors in the distal tubules and gathering pipes of the nephron.
It impacts the reabsorption of sodium and discharge of potassium (from and into the rounded liquids, separately) of the kidney, in this manner in a roundabout way impacting water maintenance or misfortune, circulatory strain, and blood volume. When dysregulated, aldosterone is pathogenic and adds to the turn of events and movement of cardiovascular and kidney disease. Aldosterone has the very inverse capability of the atrial natriuretic chemical emitted by the heart.
Hence, correct option is C.
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according to the biopsychosocial approach, which of the following factors interact to produce the problems experienced by adolescents? (select all that apply.
According to the biopsychosocial approach, the Psychological, social, and biological. factors interact to produce the problems experienced by adolescents.
In order to comprehend health, illness, and the delivery of health care, the biopsychosocial approach systematically takes into consideration social, psychological, and biological factors as well as their intricate interactions. Natural systems are a continuum along which exist biological, psychological, and social factors. In order to enhance the dyadic relationship between clinicians and their patients and multidisciplinary approaches to patient care, the biopsychosocial model assists primary care physicians in comprehending interactions among the biological and psychosocial components of illnesses.
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classify each phrase as applying to the lytic cycle, the lysogenic cycle, or both types of reproductive cycles of phages. drag the descriptions into the appropriate bins
Each phrase is classified as:
Lytic cycles- phages assembled, cell lysed, the host is destroyed
Lysogenic cycle- cells reproduce, DNA integrates,
both- viral genes are replicated.
There are two other ways that phages can multiply.
(1) the lytic cycle and (2) the lysogenic cycle.
The host cell dies or is lysed in the lytic cycle, whereas the lysogenic cycle keeps the host cell alive.
Lytic cycle:
New phages are assembled from viral DNA and proteins.The cell lysedThe host is destroyedLysogenic cycle:
The cells reproduce normallyThe viral DNA integrates into the chromosomes of the host cell.Both cycles:
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(complete question)
Reproductive cycles of a bacteriophage Classify each phrase as applying to the lytic cycle, the lysogenic cycle, or both types of reproductive cycles of phages. Drag the descriptions into the appropriate bins. View Available Hint(s) the cells lysed (broken open) viral genes are replicated new phages are assembled from viral DNA and proteins the viral DNA integrates into the chromosome of the host cell the host is destroyed the cell reproduces normally lytic cycle lysogenic cycle both cycles
What is one way that a frame
shift mutation could occur?
Answer:sanasn
Explanation:
an
Explain each of the following phenomena and how they extend our understanding of genetics from the work done by Gregor Mendel and classical Mendelian inheritance patterns. Provide a real-world example of each:Incomplete DominanceCo-DominancePleiotropyEpistasisPolygenic InheritanceSex LinkageGene linkage
Incomplete- when heterozygous(CwCr) produces 3rd different phenotype(in this case, pink)
Co-Dominance- When heterozygous displays BOTH homozygous conditions.(blood type iAiB displays BOTH A and B carbohydrates)
Multiple alleles- More than 2 alleles for a single gene(blood has i ia ib)
Polygenic inheritance - When more than one gene contributes to expression of a particular trait.
Consider how you might add mutations, alleles, and population to the concept map. Each statement contains one term already
present in the concept map (italicized) and one new term (bold). The intervening words represent the connecting phrase in the
concept map.
Select all of the accurate statements.
Reproductive obstacles stop two populations from crossing across and creating new species. The idea map might also include alleles, population, and mutations.
What kind of a mutation would that be?
Hemophilia, cystic fibrosis, and sickle cell disease are among the illnesses caused by hereditary abnormalities. Over the course of a human lifespan, further mutations could spontaneously arise at any point. They may also go by the names sporadic abnormalities, novel mutants, or spontaneous mutations. Only a few cells are affected.
How dangerous are mutations?
Modifications to your DNA's sequence are known as genetic mutations, which happen when your cells divide and make copies of themselves. Your body learns how to grow and function from your DNA. In the long run, genetic alterations might make it possible for people to adapt to their environment more effectively or cause diseases such as cancer.
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If the normal spermatogenesis is disrupted, the gametes can have different chromosomes than expected. Which of the following is the most likely cause of one of the four gametes having two XX chromosomes and one having neither an XX nor a YY chromosome?
There are 12 chromosomes in each daughter cell, each made up of two chromatids. Every chromosome is one of two homologous pairs.chromosomes from the parent cell.
What is 46 or 23, respectively, chromosomes?There are typically 23 chromosome pairs in each cell of the human body (46 total chromosomes). The father contributed the other half, while the mother contributed the first half. Your sex at birth—whether you are a boy or a girl—is determined by two chromosomes, the X and the Y.
Who are the 23 chromosomes, and what are their names?Since each human cell contains 23 chromosomes of these chromosomes, there are 46 diploid human cells and 23 haploid human cells. There are 23 pairings in total, 22 of which are considered autosomes. The 23rd pair of chromosomes, also known as the 'X' & 'Y' chromosomes, controls sexual orientation.
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After having seen many pictures of the Lincoln Monument during his lifetime, Mr. Adams
mistakenly recalled that he had actually visited the site. This best illustratesanswer choices:
source amnesia.
proactive interference.
the self-reference effect.
flashbulb memory.
After having seen many pictures of the Lincoln Monument during his lifetime, Mr. Adams mistakenly recalled that he had actually visited the site. This best illustrates source amnesia.
The incapability to recollect where, when, or how one acquired and retained knowledge is referred to as source amnesia.
Except in the case of amnesiacs, studies indicate that source amnesia appears to result from poor memory decoding process of a specific context rather than poor collection of a context-specific memory. This is because information and circumstances must be encoded together in order for the two to be incorporated into memory. Source amnesia is often connected to frontal lobe pathology.
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In the cells of multicellular organisms, proteins are assembled in the (1 point)
A. nucleus.
B .mRNA.
C.chromatin.
D. ribosome.
Answer:
D
Explanation:
The ribosome is a cellular organelle that plays a crucial role in protein synthesis, using information from the cell's DNA and messenger RNA (mRNA) to assemble the appropriate sequence of amino acids into a protein. This process is known as translation.
an antagonist to the gastrocnemius is the an antagonist to the gastrocnemius is the tibialis posterior. soleus. fibularis. extensor digitorum longus. tibialis anterior.
The tibialis anterior is the muscle that is an antagonist to the gastrocnemius.
There must be an equal and opposite reaction to every action. Muscles are the same way! Take, for instance, moving your arm. In the event that you twist your arm at the elbow, one muscle is fixing to pull your arm up; In order to provide a counterbalance to the first muscle, another muscle is relaxing simultaneously. When you relax your arm, the muscles that pull your arm straight take on opposing roles.
These opposites are referred to as agonist muscles, or muscles that contract to cause movement. and antagonist muscles, which are those that move in the opposite direction of the agonist.
Our legs have antagonist muscles like the large gastrocnemius muscle, which is in the calf of our leg. When our leg is bent at the knee, the gastrocnemius acts as an agonist, but when our leg is straightened, it acts as an antagonist. The tibialis anterior is the muscle that runs opposite the gastrocnemius and runs along our lower leg at the shin.
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for each photograph below, identify the plant as a monocot or dicot. give as many reasons as you can for each answer
Correct option is A)
The given diagram shows the structure of a monocot leaf.
A- It is bulliform cells which are present in the upper epidermis which actively participates in motor action.
B- Photosynthesis is carried by loosely packed mesophyll cells.
C- Vascular bundles helps in the conduction of organic materials.
D- Transpiration regulated by the guard cell.
So, the correct answer is option A.
Even though different species carry out photosynthesis in various ways, the process always starts when energy from light is absorbed by proteins called reaction centres, which contain the coloured pigments/chromophores green chlorophyll (and other colours). In contrast to bacteria, which have these proteins integrated in the plasma membrane, plants store these proteins in organelles called chloroplasts, which are most prevalent in leaf cells. These light- and energy-dependent processes strip electrons from the appropriate substances, such water, to produce oxygen gas.
The complete question is:
for each photograph below, identify the plant as a monocot or dicot. give as many reasons as you can for each answer:
A) Motor Action
B) Conduction
C) Transpiration
D) Photosynthesis
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