Create and send nerve impulses away from the cell body, Dendrites, a part of neuron do not perform this function.
This indicates that choice B) is the best one.
How do neurons work? What are they made of?
Neurons are the fundamental constituents of the brain and nervous system (also known as neurons or nerve cells). The cells known as neurons are responsible for receiving sensory data from the outside world, sending commands to our muscles, and converting and relaying electrical signals at various points along the road.
What are the three functions of neurons?
the gathering of signals (or data); the mixing of incoming signals; (to determine whether or not the information should be passed along).
communicate with the target cells (other neurons or muscles or glands)
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select the descriptions that apply to the ribosome. a) a membrane-bound organelle that stores digestive enzymes b) a molecular structure that is the site of synthesis c)a membranous network associated with protein production d) a membrane-enclosed organelle that stores DNA e) a cellular structure that is composed of both RNA and protein
A membranous network associated with protein production, A cellular structure that is composed of both RNA and protein.
What is a Ribosome?
Ribosomes are macromolecular machines, found within all cells, that perform biological protein synthesis. Ribosomes link amino acids together in the order specified by the codons of messenger RNA molecules to form polypeptide chains. Ribosomes consist of two major components: the small and large ribosomal subunits.
The ribosome is a membranous network associated with protein production, it is a cellular structure that is composed of both RNA and protein.
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An example of a sensor in a negative feedback loop that controls body temperature is _____.
a. a sweat gland.
b. a thermoreceptor.
c. skeletal muscle contraction.
d. the hypothalamus.
An example of a sensor in a negative feedback loop that controls body temperature is the hypothalamus.
The hormones are in charge of controlling the body's core temperature. A feedback mechanism frequently speeds up or slows down hormone output. Most hormones typically use this loop as a negative feedback mechanism. When anything starts to get too severe, a negative feedback process normalizes it. The thyroid gland, for instance, is controlled by a negative feedback process. The pituitary gland is stimulated to release thyroid-stimulating hormone by the hormone secreted by the hypothalamus. The thyroid gland then releases its hormones in response to the thyroid-stimulating hormone.
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A pea plant has seven pairs of homologous chromosomes. What is its haploid number? What is its diploid number?
If a pea plant has seven pairs of homologous chromosomes, then its haploid number is 7 and its diploid number is 14.
What are haploid and diploid numbers?The terms haploid and diploid numbers make reference to the complete set of chromosomes that a species has in a given cell type, haploid is the complete set of these chromosomes while diploid refers to two complete sets.
Therefore, with this data, we can see that haploid and diploid numbers make reference to the number of sets of entire chromosomes for a cell type.
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Why is it important to récord all data and procedures in an experiment
It is important to record all data and procedures in an experiment because the evidence and the proof depend upon the data that is found in the scientific experiment.
What is the significance of the scientific data?The scientific data is important when the experiment is done, as from the data the result is gotten, and based upon the data, the research is carried out in a particular direction, and the further experiments and the possible mistakes can be identified through this data record.
Hence, it is important to record all data and procedures in an experiment because the evidence and the proof depend upon the data that is found in the scientific experiment.
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A scientist is observing a cell under a microscope. She notes that the cell
contains a large central vacuole, chloroplasts, and a cell wall. Which type of
cell is she observing?
OA. Heterotrophic cell
OB. Plant cell
OC. Prokaryotic cell
OD. Animal cell
Answer:
Plant Cell
Explanation:
The cell contains chloroplasts and a cell wall, allowing durability but hindering movement and allowing photosynthesis. This is a
Drag the 20 mwco membrane to the membrane holder between the beakers
To simulate simple diffusion using a dialysis machine, first fill the left beaker with a solution containing specific solutes such as sodium chloride, urea, albumin, glucose, etc., and fill the other right beaker with the solute.
What is the further procedure?
Put no deionized water and gradient. A semi-permeable dialysis membrane should be placed between the cups to allow diffusion. Dialysis membranes with different pore sizes in the right corner are indicated by MWCO20, MWCO50, MWCO100, and MWCO200. The smaller ones have smaller pore sizes and the larger ones have the largest pores. The larger the pore size, the easier the diffusion of solutes.
Start with pore size MWCO20. First pull the MWCO20 dialysis membrane from the right corner and place it between the cups. Then fill the cup with the appropriate solution. You must read the text before starting the activity. The first activity is in Na+/Cl- solution. Adjust the concentration of this solution to 9 mM on the left and press the dispense button. Now you can see the solution dispensed into the left cup. The right beaker should contain 0 mM deionized water. Simply press the deionized water button, then press the dispense button. Then you have to set the time
To do this, set the timer to 60 minutes and press start. Wait for the timer to reach zero to see if diffusion has occurred. Information is displayed in the message window. A message will appear stating that there is no diffusion. This indicates that there was no diffusion through the MWCO20 membrane, indicating that the pore size is too small for ions to diffuse. Repeat this experiment with urea, albumin and glucose and record the results. Note that the cup must be rinsed and refilled with new solution each time.
Now replace MWCO20 with MWCO50 and start the experiment with Na+/Cl- solutions. In MWCO50, diffusion occurs from the left cup to the right cup and the message window displays the average diffusion rate and time. Measurements such as MWCO pore size, initial left soluble concentration mM, initial right soluble concentration mM, and average diffusion rate can be recorded in the table below. Repeat the experiment for albumin, urea and glucose and record the measurements.
Therefore, Now repeat the experiment at MWCO100 and MWCO200 for each solution to see if diffusion occurred and record the measurements.
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The complete question is:
How do you do a simulating Dialysis? Drag the 20 mwco membrane to the membrane holder between the beakers?
Damage to the fovea would have the greatest effect on
Damage to the fovea would have the greatest effect on visual acuity.
What is fovea?
The fovea centralis, or fovea, is a small depression within the neurosensory retina where visual acuity is the highest. The fovea itself is the central portion of the macula, which is responsible for central vision.
The fovea is responsible for sharp central vision (also called foveal vision), which is necessary for humans for activities for which visual detail is of primary importance, such as reading and driving. The most devastating vision loss from a retinal disease often occurs when the fovea — a 1.5-millimeter pit in the central retina — is affected. However, despite the loss of photoreceptors in the fovea, the retina has a remarkable, innate ability to adapt somewhat by developing a pseudofovea.
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Describe the functions of the auditory ossicles.
In order to transmit and amplify sound and transform sound waves into pressure waves in the perilymph and endolymph, the tympanic membrane and auditory ossicles are necessary.
Due to the tympanic membrane's wider diameter than the oval window and the auditory ossicles' articulated suspension, this function is made possible (the longer lever is at the tympanic membrane, the shorter lever is near to the oval window). A middle ear lesion does not necessarily equate to total deafness, while hearing is still possible without the auditory ossicles.
The malleus, incus, and stapes are the auditory ossicles.
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why do dried fruits and beans swell when they are cooked in water? (use the word hypotonic in your answer nad explain the movement of water)
When they are dried, the concentration within increases. When placed in water, the osmosis process begins. As a result, they swell and revert to their previous shape. The process will be accelerated as the temperature rises since osmosis gets faster as the temperature rises.
What happens when you add water to dried fruit?
This is very simple, and works on any kind of dried fruit. Put your dried fruit in a small bowl and cover with boiling water. Let it steep for 10 to 15 minutes, and then strain the fruit and discard the water. The fruit will be plumper, juicier, and softer.
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Question 26 (3 points) Which of the following is NOT product of transcription? A)a new strand of DNA B) rRNA tRNA D) mRNA E) None of the answers are correct; all of these are products of transcription:
A) 'a new strand of DNA' is not a product of transcription.
DNA transcription is the process of creating an RNA copy of a gene's DNA sequence. The copy which is also called messenger RNA or mRNA carries the gene's protein information encoded in DNA. In simple terms, the process through which DNA is copied to RNA is referred to as transcription. In the context of DNA transcription, making a new strand of DNA is not considered a product of the transcription process.
Thus, as per the given options, the only true answer pertains to option A, which is 'a new strand of DNA' is not a product of transcription.
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explain the flow of genetic information from the beginning of the cell cycle to the conclusion of it.
Genetic information is partitioned during the cell cycle such that each daughter cell receives the same information. Synthesized on a DNA template is where genetic data comes from.
The messenger RNA (mRNA) is produced during transcription (DNA to RNA), which takes place in the nucleus before the messenger RNA is transported to the cytoplasm. The two main procedures include Transcription and Translation. Gene expression is the result of the joint work of transcription and translation. The information contained in the DNA of a gene is transferred to an analogous molecule called RNA (ribonucleic acid) in the cell nucleus during transcription. DNA-encoded genetic information is expressed by the production of particular RNAs and proteins, and information travels from DNA to RNA to protein. The production of RNA under DNA control is called transcription.
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Carbohydrates will ferment in the following order from fastest to slowest. A. Sucrose fructose glucose starch water Water starch sucrose fructose glucose C Glucose sucrose fructose starch water D. Glucose fructose sucrose starch water What is your strategy? A. To determine the rate of fermentation, will measure the change in color of the solution_ To determine the rate of fermentation, will measure the height of the COz bubble produced. To determine the rate of fermentation, will measure the temperature of the solution D. To determine the rate of fermentation, will measure the pH of the solution.
Glucose will be the first one to ferment and will do so most quickly. The second carbohydrate has the slowest rate of fermentation and produces the least gas. And that is the starch and informed him that water was the only thing he should walk as.
What sugars ferment most quickly?Glycolysis occurs with all sugars. Because glucose is a Carbohydrates and does not need to be broken down, it ferments in yeast the fastest and most effectively of the three sugars (glucose, sucrose, and fructose). Because it is already in a useful state, it can be used right away in the glycolysis cycle.
Which ferments more quickly, glucose or sucrose?According to studies, some yeast and sugar varieties ferment at a higher rate than others. Our conclusion was that a monosaccharide's The rate of fermentation of a monosaccharide (glucose) would increase faster than that of a disaccharide (sucrose).
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All of the following are characteristics of cholesterol EXCEPT: 0 It is used for making sex hormones (estrogen and testosterone) 0 It is converted to bile 0 It js incorporated into cell membranes It is an essential nutrient
All the following are characteristics of cholesterol EXCEPT It is an essential nutrient. Cholesterol is a fatty substance and an organic part. Cholesterol is a member of the sterol family (modified steroids).
All animal cells manufacture cholesterol, which is a necessary component of cell membranes. Cholesterol is a substance that strengthens cells and significantly affects how permeable a cell membrane is. A molecule called cholesterol is present in bile, vitamin D, and steroid hormones. Cholesterol makes up 80% of gallstones. Cholesterol is the primary sterol present in animals. Although the adrenal gland and intestine also create a little amount of cholesterol, the liver is the principal location where it is synthesized in vertebrates. It is made by the endoplasmic reticulum in the testes. Cholesterol doesn't exist in the membranes of bacteria, fungus, plants, or mitochondria.
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Human height occurs in a countinous range because it is affected by the interaction of many genes making it a(n)
Answer:
Human height occurs in a countinous range because it is affected by the interaction of many genes making it a(n) polygenic trait
Explanation:
i paid attention in my biology class buddy
true or false: o2 gas produced by photosynthesis occurring in tony will contain a majority of the 18o isotopes originally found in the labeled co2 gas.
True. The oxygen atoms in water molecules are the source of the oxygen gas generated during photosynthesis. The plant's stomata are the entry point for the carbon dioxide required for photosynthesis.
The process of photosynthesis is where plants and certain bacteria produce oxygen. Oxygen is both consumed and produced by plants during respiration (via photosynthesis). Ozone (O3), a molecule made up of three oxygen atoms, is another product of aerobic respiration, as is carbon dioxide (CO2). When an organic molecule is oxidized, CO2 is frequently the end result. For example, photosynthesis requires six molecules of CO2 to make one molecule of glucose, and as a byproduct, six molecules of oxygen are also released.In the presence of sunshine, photosynthesis is the process through which plants absorb carbon dioxide and water. In the first phase of photosynthesis, water molecules are disassembled into individual atoms after being deprived of their electrons. Diatomic oxygen is created when the oxygen atoms from two water molecules join.
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Increasing permeability of the membrane to potassium will have what effect on the membrane potential?
A. It would make the membrane potential more positive.
B. It would make the membrane more negative.
C. It would have no effect.
Increasing permeability of the membrane to potassium will have what effect on the membrane potential will make membrane potential more negative.
The difference in electric potential between a biological cell's interior and exterior is known as membrane potential (also known as transmembrane potential or membrane voltage). That is, as long as there is no kinetic energy gain or radiation production, there is a difference in the energy needed for electric charges to flow from the interior to the outside cellular surroundings and vice versa. This energy consumption is directly determined by the gradients in charge concentration. The typical values of membrane potential for the cell's exterior are typically between -80 and -40 millivolts, abbreviated as mV.
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please help
which statement is correct about the krebs cycle?
a. it occurs in the cytoplasm of cells
b. it produces electron carriers that supply the electron transport chain in aerobic respiration
c. it is a phase of anaerobic respiration that is performed by bacteria
d. it is the light-independent reaction in photosynthesis
what role did the hcl play in part 2? how do these results correlate with where hcl occurs in the human body?
HCl's function is Hydrochloric corrosive is the most common corrosive in the stomach. It destroys bacteria as well as other harmful species. It can also be used as a food additive.
To utilise proteins in our stomach, HCl converts pepsinogen, which is not dynamic, into pepsin. Hydrochloric acid improves protein absorption by supplying H+, which activates pepsinogen, the precursor of pepsin.
Pepsinogen is produced by boss cells in the body's gastric organs and the stomach's antrum.
Pepsinogen is transformed into pepsin, a protein digesting enzyme. The presence of gastrin in the blood stimulates their synthesis. Pepsinogen is converted to pepsin by hydrochloric acid (HCl), which then degrades proteins into peptides. In the stomach, hydrochloric acid (HCl) keeps the pH around 2.0.
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What result would you expect if inherited variation turned out to be more important than environmental variation in determining your behaviour?
If inherited variation turned out to be more important than environmental variation in determining the behavior then we can expect to see more similar behavior patterns between parents and biological offspring than non-biological offspring.
How do genetics and environment work to shape complex traits?Genetics and environment are two major factors that work together to shape the phenotype of complex traits such as behavior patterns, which are deepened on these factors and also the interaction between genetic factors and environmental conditions.
Therefore, with this data, we can see that complex traits depend not only on genetics and environment but also on the interaction between these factors.
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Truth or Baloney?The cutaneous membrane is more commonly called the skin.
The cutaneous membrane is more commonly called the skin is true statement the pores and skin's number one position is to assist shield the relaxation of the frame's tissues and organs.
Membrane extra usually realize as pores and skin utaneous membrane is a subdivision of the epithelial membrane. It is likewise referred to as the pores and skin and is the number one organ of the integumentary system. Cutaneous membrane covers the floor of the frame and includes stratified squamous epithelium and the underlying connective tissues.
The pores and skin is known as the cutaneous membrane due to the fact the phrase cutaneous clearly means ''regarding the pores and skin''. Additionally, in organic terms, a membrane refers to a thin, sheet-like shape that serves as a boundary or barrier in a dwelling organism.The pores and skin is an epithelial membrane additionally known as the cutaneous membrane. It is a stratified squamous epithelial membrane resting on pinnacle of connective.
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in osmosis, as in other forms of _____________, molecules move from an area of ____________ concentration to an area of __________ concentration
In osmosis, as in other forms of WATER molecules move from an area of HIGH concentration to an area of LOWER concentratio.
What is the name for water molecules?H2O is the designation given to water in science. Due to the fact that it contains two hydrogen (H) atoms and one oxygen atom, it is known as H2O. (O). These molecules number in the millions in a single drop of water.
Is H2O a molecule of water?Even though a single water molecule (H2O) is made up of one oxygen atom coupled to two hydrogen atoms, a group of H2O molecules alone can only exist as a gas. The H atoms in each H2O molecule are positively charged, while the O atoms are negatively charged.
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Select the correct answer.
The images show two different types of Galapagos tortoises that scientists believe descended from the same species. The first type (left) are found on islands that have high vegetation and few grasses. The second type (right) are found on an island that has large amounts of grasses and low-lying shrubs. What explains the type of turtle found on the islands with high vegetation?
The image shows two different types of Galapagos tortoises. The tortoise on the left has a vegetarian and few grasses. The tortoise on the right has a large number of grasses and low-lying shrubs.
A.
The environment triggered a gene mutation in neck length in order to help the turtle survive.
B.
Mutations are random, so it is by chance that turtles with longer necks live on these islands.
C.
Turtles with genes for long necks had a better chance of surviving to reach reproductive age.
D.
Turtles with short necks completely lacked adaptations for finding food, so they died off.
The explanation for the type of turtle found on the islands with high vegetation is that Turtles with genes for long necks had a better chance of surviving to reach reproductive age.
The correct option is C.
What is adaptation?Adaptation is the process by which organisms adapt to their environment as a result of the development of special features or structures that help them to survive in their environment.
Then turtles with genes for long necks were better suited to obtain food from the high vegetation. Hence, they were able to survive.
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combination therapy for hiv is based on the assumption that it highly unlikely for multiple simultaneous mutations to cause resistance to each of the drugs used.true or false
Combination therapy (combination of many medications) is typically used to treat HIV in order to prevent the virus from developing drug resistance through selective mutation.
The major justification for using a combination of medicines in HIV therapy is that the HIV virus needs more mutations to become resistant to different medications.
Resistance to the several medications must be ensured by separate mutations alone.
Even though the mutation rate of HIV is quite high the possibility that several resistance mutations would develop concurrently in a single virion is practically improbable.
So the answer is true ,
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if two species of woodpeckers eat two different kinds of beetle larvae on pine trees in a forest, we would identify that as:
If two species of woodpeckers eat two different kinds of beetle larvae on pine trees in a forest, we would identify that as resource partitioning.
A species is both a unit of biodiversity and an organism's basic taxonomic classification in biology. A species is the largest collection of organisms in which any two people of the appropriate sexes or mating types can conceive a fertile offspring, typically through sexual reproduction. In addition, a species can be recognized by its karyotype, DNA pattern, anatomical features, behavioral traits, or ecological niche. Additionally, paleontologists employ the chronospecies concept because fossil reproduction cannot be investigated.
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) speciation . a) occurs at such a slow pace that no one has ever observed the emergence of new species b) occurs only by the accumulation of small genetic changes over vast expanses of time c) must begin with the geographic isolation of a small, frontier population d) can involve changes to a single gene
When a group within a species separates from other members of its species and evolves its own special traits, this is known as speciation.
Does speciation progress slowly?Evolution is the product of the very slow process of speciation. It is the procedure for the emergence of new species. Geographic isolation, genetic drift, natural selection, etc. can all cause variations in an organism's gene pool, which is the sum of all its genes. New, different species are created as a result of this.
How does speciation fit into evolution?Speciation. the process through which two populations of the same species diverge to the point where they are no longer able to breed with one another. Species. a collection of creatures that regularly mate with one another in nature in order to have fruitful offspring and share the same gene pool.
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QUESTION 22 Which statement is NOT true regarding the bones and the skeletal system? a)Red bone marrow is commonly found in spongy bone within adults b)The majority of bones development from cartilage tomplate through process called endochrondal ossificatio c)The osteoblasts help break down the extracellular matrix of bone tIssue d)Compact bone is organized in structures called osteons
The statement which is not true regarding the bones and the skeletal system is: The osteoblasts help break down the extracellular matrix of bone tissue.
What are osteoblasts?
Osteoblasts are specialized mesenchymal cells that synthesize bone matrix and coordinate skeletal mineralization. These cells work in concert with osteoclasts to resorb bone in a continuous cycle throughout life. The unique function of osteoblasts requires large amounts of energy production, especially during the stages of new bone formation and remodeling. Research over the past 15 years has shown that osteoblasts secrete endocrine factors that integrate the metabolic demands of osteogenesis and overall energy balance through regulation of insulin production, feeding behavior, and lipid metabolism. increase. In this article, specific energy substrates (glucose, fatty acids). Promotes bone formation and promotes osteoblast differentiation.
Therefore, The statement which is not true regarding the bones and the skeletal system is: The osteoblasts help break down the extracellular matrix of bone tissue.
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which of the following best describes a telomere? a. a region of intensely staining proteins dispersed throughout chromosomes that are actively being transcribed b. a protein-based structure found in the cytoplasm associated with controlling cell division c. a single stretch of dna that codes for nucleic acid polymerases d. a repetitive sequence found on the ends of chromosomes e. a dna sequence that codes for cytoskeletal proteins associated with intracellular communications
A chromosome's end contains a stretch of repeating DNA sequences known as a telomere. Chromosome ends are shielded from fraying or tangling by telomeres. The telomeres get a little bit shorter every time a cell divides.
Our somatic cells only contain very little amounts of telomerase. These cells age and lose their ability to operate normally because they do not use telomerase on a regular basis. Does the germline contain high quantities of telomerase? cells, including stem cells and egg and sperm. After DNA replication, the telomere length in these cells is preserved, and the cells do not age. Does cancer also have high quantities of telomerase? cells. Cancer cells can become immortal and keep growing as a result. If the telomerase activity changed.
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If two trucks have the same mass, but truck A is traveling 15 km/h, and truck B is traveling 30 km/h, what statement is true?
Question 10 options:
Truck A has greater kinetic energy
Truck A will have a greater stopping distance
Truck B has less kinetic energy
Truck B will have a greater stopping distance
Any object in motion is using kinetic energy: a person walking, a thrown baseball, a crumb falling from a table, and a charged particle in an electric field are all examples of kinetic energy at work.
What is kinetic energy in simple terms?Kinetic energy is the energy of motion, observable as the movement of an object, particle, or set of particles. Any object in motion is using kinetic energy: a person walking, a thrown baseball, a crumb falling from a table, and a charged particle in an electric field are all examples of kinetic energy at work.There are five main types of kinetic energy: radiant, thermal, sound, electrical, and mechanical.Given that the two trucks have the same mass but different velocities, that is truck A is traveling 15 km/h and truck B is traveling 30 km/h, hence Truck B will have a greater stopping distance.The reason why Truck B will have a greater stopping distance is because it speed is greater hence more distance to cover.
From the following expression
Speed = Distance/Time
Distance = Speed*Time
More on the kinetic Energy
Following from the given problem truck B will also have more kinetic energy because it velocity is moreFormula
KE= 1/2mv^2
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Which of the statements most accurately describes the benefits of the proofreading function of DNA polymerase?
The statement best describes the advantage of the proofreading ability of DNA polymerases is that these enzymes are always present in the cell nucleus and can repair any mutations that occur.
Do all cells have DNA polymerases?All living beings have DNA polymerases. These enzymes are more complex, consisting of separate proteins that unwind helices, build RNA primers, and new strands. Polymerase gamma is located in mitochondria and is involved in mitochondrial DNA replication. Four other enzymes reside in the nucleus and are thus candidates for involvement in nuclear DNA replication.
What are the main functions of DNA polymerases?The primary function of DNA polymerases is to add new nucleotides to the 3' end of the growing strand. DNA polymerases accurately and efficiently replicate the genome to ensure maintenance of genetic information and faithful transmission between generations.
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04.10. A large population of land turtles on an isolated island has two alleles determines shell thickness: The allele for thinner shells is dominant shells. The over the thinner-shell allele occurs at a frequency of 20%. t0 Assuming thick or thin shells, what should there the population? frequency of homozygous thicker-she (Hint: Use a large Punnett square to calculate 49 the answer:) 16% 50% 64
The frequency of homologous thicker shelled turtles is 64%.
What is Punnett square?
The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach in 1905. The diagram is used by biologists to determine the probability of an offspring having a particular genotype
A large population of land turtles on an isolated island has two alleles for a gene that determines shell thickness go forth in their shells is dominant over the allele for sickle shares the thinner shell Elia appears at a frequency of 20% assuming there is no net advantage to fix a thin shell what should the frequency of homozygous sticker shelled turtles be in the population
The frequency of homologous thicker shelled turtles is 64%.
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