Explanation:
The parasympathetic nervous system is responsible for the body's rest and digestion response when the body is relaxed, resting, or feeding. It basically undoes the work of sympathetic division after a stressful situation. The parasympathetic nervous system decreases respiration and heart rate and increases digestion.
In the fall, the leaves of some trees change color. This happens because chlorophyll breaks down and the accessory pigments become visible. What hormone is responsible for this?.
Answer:
Ethylene
Explanation:
long ago, people thought that the smallpox virus could be carried through the air. for this reason, many people moved from crowded cities to the more open country during smallpox epidemics, carrying with them family members who had the virus but had not yet contracted the disease. when the pox erupted on these family members, other members living in the home soon contracted the disease too. which of these was then discovered to be the means of transmission?
Long ago, people thought that the smallpox virus could be carried through the air directly contacting a person with smallpox.
Earlier smallpox changed into eliminated, and it changed into a serious infectious sickness due to the variola virus. It was contagious—that means, it unfold from one man or woman to other. People who had smallpox had a fever and a special, progressive skin rash.
The final evidently happening case of smallpox became suggested in 1977. In 1980, the world fitness organization declared that smallpox was eliminated. Presently, there may be no proof of obviously taking place smallpox transmission everywhere around the globe.
The rash looks like red bumps that steadily fill with a milky fluid. The fluid-stuffed bumps are all within the same level at the same time, in comparison to chickenpox, where the skin blisters are in different degrees of look with a mix of blisters, bumps, and crusted lesions at a given time.
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Lesson 1.2.2
Time of death
Temperature Measurements
How do you convert from Celsius to Fahrenheit? Convert each from Celsius to Fahrenheit
Answer:
0℃ 32 20℃ 68 50 ℃ 122
How will your team make it’s water bath & what does its water bath represent? To how many ℉ is 37℃ equal? What does the hot dog in the 37℃ water bath represent?
Answer: Answer:
To convert temperatures in degrees Fahrenheit to Celsius, one has to subtract 32 and multiply by .5556 (or 5/9).
To convert temperatures in degrees Celsius to Fahrenheit, multiply by 1.8 (or 9/5) and add 32.
How to calculate the temperature?The physical concept of temperature expresses in numerical form how hot or cold something is. A thermometer is used to measure temperature.
The average kinetic energy of the particles inside an object is what determines its temperature, which is a way of expressing how hot or cold something is.
In this case, 37°C to Fahrenheit will be:
= (37 × 1.8) + 32
= 98.6° F
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What process is occurring at point "X"?
Process is occurring at point "X", The releasing of energy for use by the cell.
What is cell?A cell is the basic structural and functional unit of all living organisms. It is the smallest unit of life that is classified as a living thing, and is often called the building block of life. Cells are the fundamental unit of structure and function in all living things. Cells are composed of cytoplasm, which contains many biomolecules such as proteins and nucleic acids. Cells are capable of self-replication, growth, and division. They also possess the ability to respond to stimuli and adapt to their environment. Cells are the building blocks of complex organisms, such as animals, plants, and fungi.
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Classify the hypotheses about the dwarf planet pluto as falsifiable or non-falsifiable. pluto's surface is made mostly of frozen nitrogen. pluto has an unpleasant climate. pluto's orbit is slowing down due to tidal friction. pluto's landscape is dull and boring compared to other dwarf planets in its vicinity.
Falsifiability at pluto is the capacity for a claim, assertion, theory, or hypothesis to be proven false. That ability is a crucial part of the scientific method and hypothesis testing.
Pluto has a bad atmosphere.
Compared to other nearby minor planets, Pluto's scenery is uninteresting and uninspiring.
Most of the surface of Pluto is composed of frozen nitrogen.
Tidal friction is causing Pluto's orbit to slow down.
What do the terms "falsifiable" and "non-falsifiable" mean?
A falsifiable hypothesis is one that can be disproved using modern technological testing. On the other hand, the non-falsifiable hypothese cannot be disproven hypothesis because testing has shown them to be accurate.
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Pluto's surface is made mostly of frozen nitrogen.
This hypothesis is falsifiable. It can be tested through direct observation and analysis of Pluto's surface composition. By conducting close-up observations or sending a probe to Pluto, scientists can gather data to determine the composition of its surface and confirm or refute the hypothesis.
Pluto has an unpleasant climate.
This hypothesis is non-falsifiable. The term "unpleasant" is subjective and can vary depending on individual preferences or biases. What one person considers unpleasant, another might find intriguing or fascinating. Without a clear and objective definition of "unpleasant climate," it is not possible to conduct an empirical test to determine its validity.
Pluto's orbit is slowing down due to tidal friction.
This hypothesis is falsifiable. Scientists can study Pluto's orbit and collect data on its motion over an extended period. By analyzing the observed changes in its orbit and comparing them to the predictions of gravitational theory, they can evaluate whether tidal friction is causing the orbit to slow down or not.
Pluto's landscape is dull and boring compared to other dwarf planets in its vicinity.
This hypothesis is non-falsifiable. Similar to the second hypothesis, the terms "dull" and "boring" are subjective and dependent on personal interpretation. Different people may have different opinions about what constitutes an interesting or exciting landscape. Without a clear and objective criteria for assessing the dullness or boredom of a landscape, this hypothesis cannot be empirically tested.
In summary, the hypotheses about Pluto can be categorized as follows:
Falsifiable hypotheses:
Pluto's surface is made mostly of frozen nitrogen.
Pluto's orbit is slowing down due to tidal friction.
Non-falsifiable hypotheses:
Pluto has an unpleasant climate.
Pluto's landscape is dull and boring compared to other dwarf planets in its vicinity.
Both gasoline and olive oil are largely made of carbon atoms bonded to hydrogen atoms. In these bonds, the electrons are shared fairly equally by the atoms. Why do you think these two substances are able to mix?.
Gasoline and olive oil are non-polar substances that mix well, as a non-polar compound will dissolve another non-polar compound well.
The chemical formula of gasoline is C8H18. Olive oil consists mainly of oleic acid, linoleic acid, palmitic acid and mixed triglyceride esters of other fatty acids, with traces of squalene (up to 0.7%) and sterols (about 0.2% of phytosterols and tocosterols). Whether two substances are miscible is often determined by how polar or non-polar the two substances are. Polar substances, because of the shape and nature of the molecules they are made of, have regions of different electrical charge. Like batteries that have positive and negative poles, sometimes atoms have parts that are either negatively or positively charged. Polar molecules are molecules that have either positively or negatively charged ends. Non-polar substances have a uniform, neutral electrical charge in all parts of the molecule. Non-polar molecules have no positive or negative regions. Because polar molecules have both negatively and positively charged regions, they mix well with other polar molecules.
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2. Round eed are dominant over wrinkled eed in pea plant. One parent plant i homozygou
wrinkled (rr), and the other parent plant i heterozygou round (Rr). Make Punnett quare
and tell how many offpring will be round and how many will be wrinkled. (5 point)
RR: Rr: rr, or 1:2:1, is the genotype ratio. Round seeds to wrinkled seeds have a 3:1 phenotype ratio. In a human, there are two sex chromosomes: X and Y.
XX chromosomes are found in females while XY chromosomes are found in males. A mutation is an alteration in the DNA's nucleotide sequence that can be inherited. Humans have 23 pairs of chromosomes, including one pair of sex chromosomes and 22 pairs of autosomes. the gamete will have 23 chromosomes as a result. The term "genotype" broadly refers to an organism's genetic make-up, or, to put it another way, the entire set of its genes. The phrase can also refer to a gene's alleles, or differentiating forms, in a more restricted sense.
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what general trajectory occurs in building a community back up? (e.g. starting from pioneer species with primary succession)
Through their interactions, these pioneer species go on a trajectory that contains the establishment of a basic, starting, biological community.
Primary succession is a kind of ecological succession (the development of a biological community's ecological structure) in which plants and animals first occupy a dead, arid region. Pioneer species are the first species that populate a freshly formed ecosystem. As additional species are introduced, this community grows more complicated.
The recovery of an existing biological community following a disruption that pushes the community's ecological structure back to an earlier stage is known as secondary succession, which is distinct from primary succession.
Setting examples where primary succession frequently occurs include lava-sterilized landscapes, recently formed sand dunes, and rocks either deposited by retreating glaciers or scoured by them. These environments frequently occur because they either lack soil or have soil that is incapable of supporting life.
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The current decline of amphibian populations worldwide has been linked to a ________ fungus.
The current decline of amphibian populations worldwide has been linked to a chytrid fungus.
Chytridiomycosis is an infectious disease in amphibians, caused by the chytrid fungi . Growth of the fungus leads to degradation of the keratin layer, which gradually effects by sloughing the skin, lethargy, weight loss, and potentially death.
Other forms of transmission are currently unknown but in general, chytridiomycosis is postulated to be transmitted through direct contact of hosts or through an intermediate host. Fungus also reproduces via sporangia, and are known to be spread by movement of flagellated zoospores, when they come in contact to host .
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Why would Dr. Nancy Wexler, look at family pedigree charts of the people of Lake Maracaibo as a starting point for her search for the Huntington gene?
Answer:
Hi let me put it in this way
Explanation:
Dr. Nancy Wexler likely used family pedigree charts as a starting point for her search for the Huntington gene because they provide a visual representation of the genetic relationships within a family. By looking at the family pedigree charts of the people of Lake Maracaibo, Dr. Wexler could see how the Huntington gene was inherited within families, which would help her identify patterns and possible risk factors for developing Huntington's disease. In addition, looking at family pedigree charts could help Dr. Wexler identify families with a high incidence of Huntington's disease, which would be a useful starting point for her research. By using these charts as a starting point, Dr. Wexler could more efficiently and effectively begin her search for the Huntington gene.
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what form, the larvae or the adult, disperses new individuals in flying insects that exhibit complete metamorphosis
the grownup. A species with a large geographic range is more likely to withstand environmental threats.
what is species?A group of organisms called a "species" are those that are made up of individuals with comparable characteristics and are able to interbreed or exchange genes. The most fundamental unit of taxonomic classification and rank in biology is the species. On the scale of biological categorization, a genus is the next taxonomic rank.
Which eight species categories are there?How did these ancestors of the human race compare with one another and how did they differ? Homo soloensis, Homo placental mammal, Homo following responses, Homo rudolfensis, Homo hominids, Homo erectus, Homo ergaster, etc Homo sapiens were the different species of humans. Only one of these eight types of humans has persisted: Human beings, e.g.
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which type of symbiotic relationship do the normal microbiota on the surface of your skin have with your body?
Sweat on the skin's surface hinders.
Why is the typical skin microbiome thought to be advantageous for a person?Human skin microbiota's defense mechanisms 39 It is generally accepted that colonization of the skin with a balanced or healthy microbiota is advantageous since it is believed to help prevent infections, a process known as colonization resistance.
What purpose does the skin's microbiome serve?The skin's microbiome supports skin homeostasis and the barrier function of the skin. The desquamation process and stratum corneum renewal are aided by the skin microorganisms' production of protease enzymes. pH management involves the synthesis of sebum and free fatty acids.
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A certain species of grasshopper can have red stripes, yellow stripes, or red and yellow stripes. An RR grasshopper has red stripes,
a YY grasshopper has yellow stripes, and an RY grasshopper has red and yellow stripes.
A grasshopper with red and yellow stripes mates with another grasshopper with red and yellow stripes.
What ratio would be expected in the phenotypes of their offspring?
O 3 with red stripes: 1 with yellow stripes
O 3 with red and yellow stripes : 1 with yellow stripes
O 2 with red and yellow stripes : 2 with yellow stripes
O 1 with red stripes: 2 with red and yellow stripes : 1 with yellow stripes
Answer:
D
Explanation:
a high-carbohydrate diet: a.is necessarily fattening. b.causes ketosis. is protein-sparing. forces glucose production from protein.
These diets increase insulin resistance and serum triglyceride levels.
What consequences can a diet high in carbohydrates have?An excessive intake of carbohydrates puts a heavy metabolic burden on the body. Over time, having high blood sugar levels (the result of digesting eating sugar and starch) causes weight gain, poor metabolic health, and an elevated risk of heart disease.
When should a high-carb diet be followed?In the week leading up to a strenuous activity, carbohydrates are loaded. Increase your carbohydrate intake to 8 to 12 grams per kilogram of body weight one to three days prior to the event. Reduce your intake of foods higher in fat to make up for the extra foods high in carbohydrates.
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what type of b cell does not secrete many antibodies during a primary immune response, but is very important for a secondary immune response?
Although effector B cells can start producing antibodies when they are still tiny lymphocytes, the final stage of their development is a big plasma cell.
Which cell promotes the production of antibodies but does not secrete them itself?Specifically, T-cells
Though they do not secrete antibodies themselves, T-cells do assist B cells in doing so. Two short, or light chains, and two long, or heavy chains, peptide chains make up each antibody molecule. the abbreviation for an antibody is H.L antibodies come in several forms.
What type of B-cell initiates the secondary immune response?The immune system can more effectively and quickly rid the body of the antigen that was exposed to the individual during the initial invasion during the secondary immune response.
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Sea anemones are ocean animals that can reproduce both sexually and asexually. A single sea anemone is located in a stable, isolated environment that is capable of supporting a colony of sea anemones.
Since the sea anemone lives in a place where the habitat is stable and good for the sea anemone colony, it would be better for the sea anemone to reproduce asexually and produce multiple copies.
They can reproduce asexually, incubating essentially identical twins from a single specimen. This can lead to the formation of a large colony of identical individuals, as can be seen in the local intertidal with the aggregate anemone. They can also reproduce sexually by relay spawning, where fertilization takes place in the water. The resulting larvae then swim around the plankton until they find a suitable place to settle, at which point they metamorphose into a juvenile anemone.
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in the general population, 1 in 300 individuals is a carrier for tay-sachs disease, while 1 in 30 individuals of ashkenazi jew descent are carriers. tay-sachs also affects 1 in 30 individuals with french-canadian ancestry, although two completely unique mutations are responsible for the ashkenazi and french-canadian mutations.
Due to a greater frequency of three Tay Sachs disease mutations in this community, Ashkenazi Jews have a higher chance of developing the disease.
Who is most likely to have Tay-Sachs disease?Anyone can carry the Tay-Sachs disease. But those of Ashkenazi Jewish descent are the group most likely to contract the illness. One in every 27 individuals of the population possesses the Tay-Sachs gene. Tay-Sachs is split into infantile, juvenile, and adult variants, based on the symptoms and when they first show.
With each pregnancy, there is a 25% chance that two carrier parents will transfer the mutated gene and result in an afflicted kid. With each pregnancy, there is a 50% chance that the kid will carry the same gene as one of the parents.
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The type of tissue that transports water and nutrients through a plant is called tissue.
Xylem tissues are responsible for transporting water and nutrients in plants an they are also known as vascular tissues. They are made with dead cells
A plant's xylem, or vascular tissue, transports water and dissolved minerals from the roots to the rest of the plant while also offering structural support. Various specialized, water-conducting cells collectively referred to as tracheary components make up xylem tissue. All vascular plants, including the seedless club mosses, ferns, horsetails, all angiosperms and gymnosperms
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Humans, butterflies, and trees are all living things. In which of these organisms would you find dna molecules?.
DNA can be discovered in humans, butterflies, and trees since DNA (genetic material) is present in every living thing.
Which living things include DNA molecules?DNA is present in every cell of a living creature. A multicellular creature's cells actually have almost all of the DNA needed for that organism. But DNA serves as the main component of heredity in all kinds of creatures, doing more than only defining the form and function of living things.
Are DNA molecules present in trees?Each "Christmas tree" has a transcription unit for the trunk, which symbolizes a DNA molecule, and granular strings for the branches, which are RNA molecules that have been produced during transcription of the DNA.
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Which wells/lanes (A-E; M is the reference well with DNA fragments of known sizes) contain fragments of DNA that are the same size as each other (included all similar fragments)?
What are the approximate sizes of the fragments?
PS100074 vector in vitro digested using purified Cas9 protein (Cat. No. TP790148) and particular sgRNA. Only when the purified Cas9 protein is combined with a particular sgRNA can it cut the substrate DNA.
The splitting or breaking of DNA strands into pieces is known as DNA fragmentation.
What do you mean by DNA fragments ?Cells can do it on purpose, laboratory workers can do it on purpose, or it can happen naturally. DNA fragmentation that occurs accidentally or spontaneously builds up over time in a cell.
The intrinsic causes of sperm DNA fragmentation include insufficient recombination, protamine imbalances, oxidative stress, and abortive apoptosis.Even in oocytes of high quality, sperm DNA fragmentation was inversely linked with blastulation and conception rates. High amounts of DNA damage encourage embryo arrest and cause the apoptotic pathway to be activated.To know more about DNA fragmentation please click here ; https://brainly.com/question/17568989
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Most of the energy released in citric acid cycle reactions is conserved in ________.
Answer:
The tricarboxylic acid (TCA)
Explanation:
The tricarboxylic acid (TCA) cycle, also known as the Krebs or citric acid cycle, is the main source of energy for cells and an important part of aerobic respiration. The cycle harnesses the available chemical energy of acetyl coenzyme A (acetyl CoA) into the reducing power of nicotinamide adenine dinucleotide (NADH).
blood flows through an artery that is partially blocked. as the blood moves from the wider region into the narrow region, the blood speed
Blood flows through an artery that is partially blocked. as the blood moves from the wider region into the narrow region, alternately increases and then decreases.
What is the purpose of blood flow in heart?The removal of positive charge by electrochemical gradients causes the membrane potential of the cell to shift more strongly in the direction of the equilibrium potential for potassium.
The membrane would become more negative as potassium permeability through the membrane increased. Given that potassium is a positively-charged ion and that the intracellular environment has a net negative charge, enhancing the membrane's permeability would result in a more negative membrane.
For instance, the amplitude of the potassium concentration gradient across the myocyte decreases as the external potassium level rises, lowering the resting membrane potential.
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In terms of cellular respiration, why is it necessary to incorporate plants into a terrarium along with fauna (animal)
Answer:
The plants release O2 which the animals need to complete photosynthesis. They also absorb the CO2 produced by the animals during cellular respiration.
Explanation:
why are enteric bacteria such as escherichia coli, are common meat contaminants?
why are enteric bacteria such as escherichia coli, are common meat contaminants .As a result of the slaughter and processing of cattle, Escherichia coli bacteria can infect meat.
There is a larger risk of infection in ground beef since it contains animal flesh from several different species. pristine milk. E. coli bacteria from the udder of the cow or from the milking equipment can contaminate raw milk.
Escherichia coli (E. coli) germs often live in both human and animal intestines. Most strains of E. coli are harmless, and they actually serve an essential part in preserving the wellbeing of the human gastrointestinal system. But some strains of E. coli are pathogenic, meaning they can make people ill by giving them diarrhea or by giving them illnesses that don't originate in the digestive system. Infected food or water, interaction with people or animals, or contaminated food or water are all ways that E. coli strains that can cause diarrhea can spread.
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organism a is eukaryotic, unicellular, and lacks a cell wall. organism b is eukaryotic, multicellular, has cell walls, and is autotrophic. in which kingdoms should these organisms be classified?
Kingdom Plantae contains species that are autotrophic and have a cellulose cell wall, whereas kingdom Animalia contains organisms that are heterotrophic and lack a cell wall.
These species be categorized in which kingdoms?Animals belonging to the kingdom Animalia have multicellular bodies, eat in a heterotrophic way, have eukaryotic cells, and lack cell walls. Because they generate their nourishment using solar energy, Kingdom Plantae are autotrophs. Cellulose is a component of plant cell walls.
Most eukaryotes, including animals, do not typically have cell walls, but some do, including fungi, algae, plants, and the majority of prokaryotic creatures.
Which eukaryotic kingdom is multicellular and without a cell wall?The Kingdom Animalia is distinguished from the other groups by having multicellular bodies, a heterotrophic mode of nourishment, eukaryotic cells, and cells without a cell wall.
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the timing of a mutation during development has negligible effects on the severity of the genetic defect.
Xeroderma pigmentosum (XP) patients have a malfunctioning mismatch repair system. False; they have a NER flaw. Most oncogenes produce proteins that are involved in signaling pathways that promote cell proliferation.
Which mutations do not affect an organism's ability to survive?Neutral - Neither the final protein function nor the characteristic are significantly impacted. This has no effect on the organism's survival or general well-being, either positive or negative.
What impact do mutations have on an organism, exactly?For organisms, mutations can either be helpful, detrimental, or neutral. - An organism can benefit from a change that results from a favorable mutation. - An organism suffers harm as a result of a dangerous mutation. - A impartial.
Question: The timing of a mutation during development has negligible effects on the severity of the genetic defect
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White blood cell sub groups are based on ___.
A. Color of stain granules
B. Size
C. Shape and size of nucleus
D. Presence or absence of granules
White blood cell sub groups are based on Color of stain granules, Shape and size of nucleus, Presence or absence of granules.
How do white blood cells function?Your body's defense against infection is provided by white blood cells, also referred to as leukocytes. White blood cells circulate in your blood and respond to damage or illness as a component of your immune system. Your immune system is fortified by white blood cells. Your white blood cells find the infection site as they move through your bloodstream and tissues, acting as an army general to alert other white blood cells to the infection's location and aiding in the defense of your body against an attack by an unknown organism. Your white blood cell army fights the intruder by creating antibody proteins to adhere to the organism and kill it once they have arrived.To learn more about white blood cells refer to:
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If you were constructing a phylogenetic tree for the evolution of birds, which characters found in archaeopteryx might provide evidence that birds and dinosaurs had a common ancestor?.
Ostrom investigated the fossilized Archaeopteryx, a raven-sized dinosaur with wings and flight feathers that lived towards the end of the Jurassic period.
In the 1860s, Archaeopteryx was initially recognized as a distinct species. Due to the fact that it appeared to be a bird with dinosaur-like characteristics, it was quickly seized upon as proof of Darwin's theory of evolution. It had feathers and wings, but no beak—just teeth.
Instead than just fossilized bones and skeletal similarities, soft tissue, especially feathers, provide strong evidence for the notion. Numerous dinosaurs possessed noticeable feathers in addition to some kind of body covering.
Theropods and the bird-like monster shared skeletal traits such as sharp teeth, three-clawed fingers, and a long bony tail.
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What is the difference between homozygous and homologous?
There are two sets of chromosomes in humans. Allele pairings are categorized using the terms homologous and homozygous.
Homologous individuals are those who have two copies of the same allele. While homozygous refers to a particular organism with various alleles.
A homologous chromosomal pair consists of two chromosomes that are comparable in length, location of the genes, and centromeres.
Chromosomes are essential molecules because they hold DNA and the genetic code that determines how all cell activity will be directed.
Additionally, they include genes that control particular traits that can be passed down through the generations. 46 chromosomes, or 23 pairs, make up each human cell.
Non-homologous chromosomes have distinct chromosomal pairs. Different gene types are represented by alleles on non-homologous chromosomes.
Non-homologous chromosomes are made up of alleles from different genes.
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In contrast to homozygous organisms, which contain both copies of a given gene with the same allele, homologous refers to a degree of correlation or likeness.
Whenever a gene is present on a maternal chromosome, it will also be present in the same location on the paternal chromosome. This is known as homology. It can exhibit additional vigour known as hybrid vigour. Self breeding results in a blend of several qualities.
In homozygous it exhibits no additional vigor over generations, self breeding generates the same trade. It only produce one type of gamete.
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Based on the image, what is the mass of the object being measured?
Answer:
we need a picture :)
Explanation: