Cancer is a disease characterized by uncontrolled cell division and tissue invasion (due to DNA alterations).
Cancer, what is it?Cancer is fundamentally a mitotic illness in which the cancer cell ignores or overrides the usual mitotic "checkpoints" that control the process. When a single cell undergoes a transformation into a cancer cell, cancer is said to have started.
Is unchecked meiosis or mitosis the cause of cancer?Every cell's genes play a significant role in controlling mitosis. This control may not always work. If it only affects one cell, it has the potential to spread and create other uncontrolled cells through self-replication. They are malignant cells.
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dht is a hormone that is necessary for the development of the:
DHT is a hormone that is necessary for the development of the: male external genitalia.
Hormones are your frame's chemical messengers. They journey on your bloodstream to tissues or organs. They work slowly, through the years, and have an effect on many distinct strategies, together with: boom and development. Metabolism - how your body receives electricity from the foods you devour.
Endocrine glands make chemicals known as hormones and skip them straight into the bloodstream. Hormones can be notion of as chemical messages. From the blood stream, the hormones talk with the frame with the aid of heading in the direction of their goal mobile to result in a selected exchange or effect to that cell.
Hormones are are the frame's chemical messengers, sending alerts into the bloodstream and tissues. Hormones paintings slowly, over the years, and affect many extraordinary techniques, such as boom and development, metabolism – how your body gets electricity from the meals you consume- function, reproduction, and mood.
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Cells that develop into neurons and glia originate in the
a. ventricular zone.
b. radial glia.
c. forebrain.
d. spinal cord.
Cells that develop into neurons and glia originate in the ventricular zone.
Ventricular zone (VZ) is a transient embryonic layer of tissue containing neural stem cells, mainly radial glial cells, of the central nervous system (CNS).
Ventricular zone gives rise to neuroblasts and globalists (future supporting cells) which migrate into the intermediate zone form two collections of cells separated by a groove called the sulcus limitans. Ventricular system of the brain functions to enhance support to surrounding tissues having cerebrospinal fluid (CSF), which are produced in the choroid plexus tissue lining many of the ventricles.
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What is the difference between Cell Differentiation and Mitosis?
Answer:
the difference is how to do it and how it's done
Answer:
In order for a cell to differentiate, it will express specific genes. Once a cell has differentiated, it loses its ability to undergo mitosis (see below). Cell division involves the splitting of a cell Mitosis is a form of cell division: this is the process by which cells split to form new cells.
Which of these is NOT a product of the Krebs Cycle?
ATP
Pyruvate
NADH
Carbon dioxide
FADH2
Answer:
Pyruvate is not a product of the Krebs cycle
Explanation:
which part of the flower is labeled with an x
Answer:
Ovary
Explanation:
The ovary is a pair of female type glands in which the eggs start form and the female hormone's estrogen and progesterone are made produced.
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which derived trait evolved to help animals overcome the effect of gravity on animals moving on land? group of answer choices amniotic egg cartilaginous endoskeleton stronger limbs with more muscle specialized sensory organs vertebrae fur and feathers
The derived trait which evolved to overcome the effect of gravity on animals moving on land is the evolution of stronger limbs with more muscle, which means that option C is the right answer.
Stronger limbs are very important for animals as they help in running, climbing, walking or paddle swimming. It also helps them in tearing flesh, and helps in balancing the weight of the body, which enables them to move smoothly. Animals without limbs are called invertebrate and they lack legs due to which they can just swim in water. Their movement is by crawling or sliding. The presence of limbs allowed the transition of life from aquatic to terrestrial. The anatomy of limbs also helps to identify relation with other animals which are present or extinct.
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How does the probability of an earthquake occurring evolve with time, in between two different earthquakes?.
The factors that determine the likelihood of an earthquake are history, strain accumulation, and the rate at which strain accumulates in a rock.
An earthquake occurs when two blocks of earth suddenly slip past each other. The fault or fault plane is the surface where they slip. Earthquakes are caused by sudden movement along fault lines within the Earth. The movement releases accumulated 'elastic strain' energy in the form of seismic waves, which travel through the Earth and cause the ground to shake.
Within the next 30 years, there is a 60% chance of an earthquake measuring magnitude 6.7, a 46% chance of an earthquake measuring magnitude 7, and a 31% chance of an earthquake measuring magnitude 7.5. A transform boundary causes a fault between two lithosphere plates, which slide past one another. This motion neither creates nor destroys crust and will result in earthquakes but no volcanoes.
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Dna replication relies on the blank______ of dna strands according to the blank______ rule.
The AT/GC rule states that complementary DNA strands are necessary for DNA replication.
DNA – Is it blood?Blood, sperms, epidermis, tissue, lungs, muscle, grey matter, skeleton, gums, hair, tongue, phlegm, breath, fingernails, urine, feces, and other bodily fluids all contain DNA. Where might one go for DNA evidence at a murder scene? DNA proof can be gathered from almost everywhere.
How long does DNA last?What is the DNA's shelf life? Theoretically, a week to a million years. DNA degrades at different rates depending on how it is packaged and stored. It primarily depends on how much heat, alcohol, sunlight, and oxygen are exposed to the DNA.
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Identify the single muscle of the intermediate layer in the anterior compartment of the forearm.
Flexor digitorum superficialis is the only muscle found in the intermediate layer.
Where is the anterior compartment?One of the multiple chambers in the leg between both the knee and the foot is the anterior compartment. Ankle benefit of utilizing and toe extension are predominantly produced by the muscles in this compartment. A closed osteofascial segment experiences increased pressure, which impairs local circulation, resulting in acute disseminated syndrome.
What use does the anterior compartment serve?The muscles in the rear compartment's job are responsible for extending the lumbar spine at the knee. The anterior division has a distinct innervation system and circulatory system. The femoral nerve supplies the anterior region of the thigh with its innervation (L2 through L4).
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On bacteria how are pilus and flagella different and similar?
Flagella are helical appendages that protrude through the cell membrane and are long and whip-like. Pili are hollow filamentous extensions that emerge from the cell's surface.
Flagella are whip-like and pili are hair-like. Flagella are extended from the interior cell body while pili extend from the cell surface. pili are mostly found in bacteria.
The pilus is a hair-like structure associated with bacterial adhesion and related to bacterial colonization and infection.
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Hemizygosity would most likely be associated with which of the following?
a. Sex linked inheritance
b. Incomplete Dominance
c. Trihybrid crosses
d. Sex inherited inheritance
e. Dihybrid crosses
Answer:
A. Sex linked inheritance
Explanation:
A woman was born in 1916, but she just celebrated her 26th birthday in 2020. Explain how this is possible using just two words.
The year 1916 was a leap year which means she celebrates her birthday once every 4 years on another leap year. There have been 26 leap years since 1916.
What is a leap year?
It is a calendar year that contains an additional day added to keep the calendar year synchronized with the seasonal year. Each leap year has 366 days instead of 365, by extending February to 29 days rather than the common 28 days. These extra days occur in each year that is an integer multiple of 4.
Here woman was born on 29 February. The date 29 February comesw every four years. So in a century it would come 25 times and another time in the next four years.
Birth year : 1916
Current year : 2020
Difference : 104 years
Leap year comes every four years. So in 104 years it would come 26 years.
Hence assuming the woman in question was born on February 29th, that means she celebrates her birthday once every 4 years on another leap year.
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How many bonds are there between adenine and thymine? and how many bones are there between cytosine and guanine?
Answer:
How many bonds are there between adenine and thymine?
2 hydrogen bonds
How many bones are there between cytosine and guanine?
three hydrogen bonds
Explanation:
There are two bonds between adenine and thymine. And there are three bonds between cytosine and guanine.
Nucleotides are small units used to construct DNA and RNA. Each nucleotide contains a nitrogenous base, a phosphate group, and a sugar group.
The five nitrogenous bases are adenine, guanine, cytosine, thymine, and uracil.
In DNA, the adenine bonds with thymine and the cytosine with guanine. Because these combinations only allow the formation of a hydrogen bond.
The hydrogen bond is formed only between the highly electronegative atom with hydrogen and the electronegative atom with a lone electron pair.
Between adenine and thymine, hydrogen bond formation occurs with the help of two donors and two acceptors.
Between cytosine and guanine, hydrogen bond formation occurs with the help of three donors and three acceptors.
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Crick and brenner performed a set of experiments with viral dna designed to determine the nature of the genetic code. What were their conclusions?.
The genetic code has no voids. The genetic code is read three nucleotide at a time.
What examples of genetics are there?Genetics is the study of genes. Our DNA transmits information from one generations to the next. Due to heredity, one child, for example, has blonde hair like her mother, whereas their sibling have dark hair like their father.
Is it genetic or inherited?Genetic problems can either be genetic or not, but there will always a mutational alteration in the genome. Hereditary diseases can be passed from one generation to the next. The main difference between the two ideas is this.
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Which of the following does not contribute to the rate of weathering?
climate
fossils
rock type
mineral composition
Answer:
It's rock type..............
which of the following viruses maintains a latent state in nerve cells norwalk virus. herpes virus. rotavirus. hepatitis a virus.
A virus that maintains a latent state in nerve cells is herpes virus.
Viruses are microorganisms that do not have a cytoplasmic membrane, cytoplasm or nucleus. Viruses are parasitic or require a host to live.
The cause of herpes is the herpes simplex virus or HSV types I and II. HSV causes vesicles on the skin and mucous membranes. The herpes virus enters through small wounds on the body and begins to cause symptoms of tiny vesicles that burst easily. The herpes virus can attack infants and children, besides that the herpes virus can also be transmitted through sexual contact and in infants the virus is latent in nerve cells.
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HELPPP PLS ASAP!! 2 ATTACHED 50 POINTS!
PS.have a lovely day
I am having difficulties so I screen shotted it.
Enzymes are proteins that are made up of amino acids that have a(n) [?] carbon. A. peptide chain C. linear B. asymmetrical D. bent
Enzymes are proteins that are made up of amino acids that have peptide chain
An amino acid short chain is known as a peptide. Peptide bonds are the connections that hold the amino acids of a peptide together in a particular order. Peptides are typically recognized from proteins by their shorter length, though the exact number of amino acids required to distinguish between a peptide and a protein can vary.
Proteins called enzymes are made up of amino acids connected by one or more polypeptide chains. The fundamental structure of a polypeptide chain refers to this arrangement of amino acids. This in turn determines the enzyme's three-dimensional structure, including the active site's shape.
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NEED HELP ASAP! Clay is found close to the surface.
Which type of mine would most likely be used to collect clay?
1.Highwall
2.Underwater
3.Open pit
4.Subsurface
Open pit mines are used to collect clay.
What is surface mining?
Almost all mining ventures involve some form of surface mining. Surface mining is the process of removing the top layer of the ground to obtain the minerals below. Surface mining is specifically used to recover materials like sand, gravel, stones, coal, iron, and other metals.
Types of surface mining:
1.Mining in Open Pits
Similar to strip mining, open-pit mining involves extracting ore from an open pit that isn't then filled in. Ancient civilizations including the Greeks, Romans, and Persians engaged in open-pit mining for salt, granite, and marble for ages.When open-pit mines generate building materials like marble, granite, and limestone, they are generally referred to as quarries.2.Extensive Mining
A "highwall," or an unmined wall with overburden and exposed minerals and ores, is used in highwall mining to collect the ore. Highwalls are typically found at the edges of quarries and pit mines, allowing miners to access ore that would otherwise be too expensive to remove overburden from.3.Dredging
The more complex variation of panning for gold is dredging. In actuality, it's primarily connected to gold mining. Moving up a water table are floating dredges, which are barges equipped with conveyor belts and scoops, much like hopeful miners with their pans during the gold rush.4.Removal of Mountains
Mountaintop removal mining, which is hotly debated, is best suited for removing significant quantities of minerals from mountain summits, typically coal. The procedure entails using explosives to blast the overburden above the desired mineral seam.Thus, open pits mining is used to collect clay
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lipophilic weak bases that diffuse into the parietal cell canaliculi, where they become protonated
PPIs (proton pump inhibitors) efficiently prevent the release of stomach acid through binding to as well as impeding the hydrogen-potassium
Pantoprazole would be a weak, lipophilic base which thus arrives the acidified parietal cell arrangement through the parietal cell membrane and undergoes protonation. This produces the active metabolite sulfonamide, which also forms an irrecoverable covalent bond to two places of the H+/K+-ATPase enzyme upon the gastric parietal cells.
While both PPIs and acid controls decrease the quantity of stomach acid your stomach generates, H2 blockers act faster than PPIs and can provide comfort in as little and around 15 and 30 minutes. PPIs are the best choice for people who frequently have heartburn because they can take longer to start working but offer longer-lasting relief.
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. Daughter cells produced will have
a what
number of chromosomes
(diploid, haploid)
Each daughter cell formed is haploid, having only one set of chromosomes. These haploid cells are formed at the end of meiosis.
What is meiosis?
Meiosis: cell division between sexually reproducing organisms. The number of chromosome in gamets gets reduced by half, forming haploid daughter cells.
Meiosis has two divisions: meiosis 1 and meiosis 2.
Meiosis I has 4 stages:
• Prophase 1
Leptotene
Zygotene
Pachytene
Diplotene
Diakinesis
• Metaphase 1
• Anaphase 1
• Telophase 1
Meiosis 2 has a similar second meiotic division, where non sister chromatids separate completely.
Therefore, after meiosis, daughter cells formed are haploid, having only one set of chromosomes.
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in a certain plant, blue flowers are dominant to yellow flowers, and short-stalked plants are dominant to long-stalked plants. consider that a blue-flowered plant with a short stalk is crossed with a yellow-flowered plant that has a long stalk. the results of this cross are as follows:
The results of this cross are dihybrid.
These classic perennials have a yellow center and narrow blue petals. Blue daisies are herbaceous perennials that grow quickly and produce the classic daisy flowers we know and love, only in pretty blue colors The center of the flower is bright yellow. One of the best blue-flowered container plants, producing cascades of tiny soft blue flowers from spring until the first frost. Learn more about growing Lobelia.
Bluebell or Hyacinthoides non-script is a perennial bulbous plant. The species gets its common name from the bell-like appearance of its flowers. Bluebells have thin stems that are about 20 inches long and have a single row of bell-shaped flowers.
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According to the trichromatic theory of color vision, ________ in the retina are responsive to red, green, and blue.
According to the trichromatic theory of color vision, cones in the retina are responsive to red, green, and blue.
Retina is a nerve tissue layer present at the back of the eye. Its function is to receive the image of the object in front of the eye and then transmits the electrical signals to the brain for image formation. Hence, retina is a very essential for the process of image formation.
Cones are the type of photoreceptor cells in the retina of the eye. They are responsible for the colored image formation during the day. The exact location of cones in the retina is an area called macula. Since they are work in day, they require more light.
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According to the lab 10 lecture, what can cause morphological traits to be potentially misleading and result in inaccurate phylogenetic trees?.
Because of convergent evolution, physical characteristics may be deceptive and lead to unreliable phylogenetic trees.
How come phylogenetic trees are wrong?Phylogenetic trees do not typically take branches into account when calculating time. They show the progression of evolution as well as its differences. After two lineages diverge, phylogenetic trees do not simply grow in one way the evolution of one creature does not necessarily mean the end of the evolution of another.
Are phylogenetic trees constrained in any way?It's possible that a phylogenetic tree won't show how long it took for hair. The order in which events occurred is what the tree does demonstrate. For instance, the tree in the aforementioned figure demonstrates that the vertebral column is the oldest characteristic.
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nitrogenous waste from protein metabolism is used to make urea which is subsequently secreted by the dct
Nitrogenous waste from protein metabolism is used to make urea which is subsequently secreted by the kidney.
What do you mean by protein metabolism?
Protein synthesis and breakdown (catabolism) are two different biochemical processes that are referred to collectively as protein metabolism. Transcription, translation, and post-translational modifications are the processes in the production of proteins.
What is kidney?In vertebrates, the kidneys are two reddish-brown, bean-shaped organs. They are around 12 centimeters (4+12 inches) in length in adult humans and are situated on the left and right sides of the retroperitoneal region. Blood enters them through the paired renal arteries, and it leaves through the paired renal veins. A ureter, a tube that transports expelled urine to the bladder, is connected to each kidney. The kidney takes involved in the regulation of toxin elimination, fluid osmolality, acid-base balance, various electrolyte concentrations, and volume of various body fluids. One-fifth of the blood volume that enters the kidneys is filtered in the glomerulus, where filtering takes place.
Thus from above conclusion we can say that nitrogenous waste from protein metabolism is used to make urea which is subsequently secreted by the kidney.
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______ is abundle of neuron fibers or processes that extends to and/or from the CNS and visceral organs or structures of the body periphery such as skeletal muscles, glands, and skin.
Through bundling of neuron fiber or activity known as nerves, the nervous system or internal bodily processes or tissues, such as muscle fibers, glands, the skin, are linked.
What substance makes up nerve fibers?Category A, group B, and quarterfinals nerve terminals are the three categories into which nerve fibers are divided. Units A and B include myelin sheaths, whereas group C does not. Both of the fibers seen in these groups are somatosensory fibers.
What are the four types of nerve fibers?A-alpha nerve fibers convey information linked to proprioception (muscle sense). A-beta nerve fibers carry information about touch. A-delta nerve fibers transmit information about temperature and pain. The C-nerve fibers transmit sensations of itch, warmth, and pain.
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_____ is an injury that is the result of overuse, overstretching, or forcible stretching of a muscle beyond its functional capacity. It sometimes involves a tendon or ligament.
Chronic strains are an injury brought on by overusing, overstretching, or forcibly reaching a muscle beyond its range of motion. A tendon or ligament may occasionally be involved.
Usually entails a strained or torn ligament, is a joint injury?A sprain is a stretching or tearing of the ligaments, the strong bands of fibrous tissue in your joints that link two bones together.
The knee's semilunar cartilages are involved in which injury?Additional cartilage strips, known as semilunar cartilages, support the knee joint on both sides. Meniscal tears or splits are among the most frequent knee injuries. extreme impact or twisting, particularly when engaging in weight-bearing activities.
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what is the name of the hormone producing cells in the middle of this endocrine organ, indicated by the arrow?
Answer:
Pituitary. The pituitary gland is located below the brain. Usually no larger than a pea, the gland controls many functions of the other endocrine glands.
Explanation:
You didnt include the image with the arrow so im not sure
Is Alzheimer’s a point mutation or frameshift mutation?
Two powerful adductor muscles Hold the shells of a clam together. Humans have trouble opening a live clam, yet a sea star can pull them apart. How do they do this
Answer: because they have many little arms with powerful suction.
Explanation:
sea stars have many little suction tubes with extreme power all around their body and they use them to rip open the clam.