On the graphs, the dashed line represents the original population, and the solid line represents the population after natural selection has taken place. A population of snails is going through disruptive selection as it relates to their shell patterns. Which graph represents the population? A B C D
Answers
About the question: You will find the graphs in the attached files
Answer:
Graph C is the one that represents the snail population after disruptive selection.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Answer:
C
Explanation:
I took the test
Related Questions
which of the following is a possible consequence of disabling the g2 checkpoint in the cell cycle?
Answers
the following is a possible consequence of disabling the g2 checkpoint in the cell cycle : incompletely replicated DNA may be passed to the two daughter cells; these cells could be lacking in specific genes or chromosomes and would likely not survive.
If DNA replication did not occur completely, the offspring cells would lack some or all of the genome. This could be disastrous if a cell lacked the genes required for proper function and health. The cell cycle will not progress to the next stage if the DNA is not replicated the DNA is not replicated, the cell cycle will not progress to the next stage. As a result, the subsequent division would not take place. This will result in cell death.
If the cell did not duplicate its DNA (as occurs during meiosis to produce gametes), each daughter cell would receive only one copy of each chromosome. Instead of 23 pairs, each cell would have 23 chromosomes (in other words, each cell would be haploid).
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which of the following is the first step perfomed after the blood colection bag is filled during a plasma collection?
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Asking the patient to speak and spell his or her name and providing you with his or her birth date is the first step in collecting data from the patient.
Which blood sample should be drawn first in the order of blood collection?According to CLSI Procedures & Devices for such Collection for Capillary Blood Specimens; Certified Standard - Sixth Version, September 2008, the order for draw is based on that document.To produce a high-quality specimen, this standard suggests drawing EDTA tubes first, then other additive tubes, and finally serum specimen tubes.
What is the proper sequence for collecting blood tubes?The following is the proper draw order: a container or tube for blood cultures. Tube for sodium citrate (eg, blue closure) serum tubes, including ones that contain gels and clot activators
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1. Cellular respiration is a series of chemical reactions that convert the energy in food molecules into energy stored in the molecule _________. Aerobic respiration requires the presence of Oxygen___________ and releases water and _________________ as waste products.
Answers
Answer:
1. H2O
2. H
3. 2 molecules of oxygen.
Determine which energy use evaluation technique is being described and drag the explanation label to its appropriate classification category. You are placed in a small room and the amount of body heat you release raises the temperature of a layer of water that surrounds the room by measuring the water temperature, scientists can determine how much energy is expended Your height weight, age, gender, and physical activity estimate are used to estimate energy needs. You are hooked up to a cart that measures the amount of oxygen you consume; Instruments on the cart convert oxygen use to energy use, determining estimated caloric use. Direct calorimetry Indirect calorimetry Estimated energy requirement calculation < Prev 69 of 120 !!! Next → G S 9W MacBook Pro 90 FU F4 F5 590 A $ 4 % 5 00 * Il + 3 6 7 9 0 E R T Y o P
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Calorimetry is the practice of tracking changes in a body's state variables in order to predict, within certain limits, the heat transfer resulting from those changes, such as those brought on by chemical reactions, physical alterations, or phase transitions. Calorimetry is done with a calorimeter. Joseph Black, a Scottish physician and scientist who was the first to distinguish between heat and temperature, is credited with developing the science of calorimetry.
A reference material for calorimetry must have specified thermal constitutive properties that are known and measured. The temperature and volume of a calorimetric substance are the only variables that may completely and quickly identify the pressure it creates, according to the traditional rule, which Clausius and Kelvin acknowledged. The melting of ice is an example of a transition that does not involve a phase change that is covered by this rule. This standard is deviated from by many materials, and the current classical calorimetry formula is insufficient to account for these variations. It is anticipated that the normal rule will be followed by the calorimetric material in this instance.
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Which of the following describes a critical role of cAMP during the transduction stage of a G protein signal transduction pathway?
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cAMP results in the activation of an enzyme that amplifies the signal by acting on many substrate molecules.
acute labyrinthitis is sudden onset of inflammation of the structures that form the membranous labyrinth. which of the following structures would not be inflamed with this condition? a) Semicircular canals
b) Malleus
c) Utricle
d) Cochlea
Answers
Malleus would not be inflamed with acute labyrinthitis because The malleus is an ossicle it is not part of the inner ear.
The condition known as labyrinthitis, which affects balance, can be brought on by an infection or inflammation of the inner ear. When you have an upper respiratory infection, such as the flu, you may occasionally contract it.
Viruses frequently induce labyrinthitis-causing inner ear infections. At times, bacteria may also be the culprit. Doctors must distinguish between viral and bacterial diseases since their symptoms can sometimes be so similar.
The malleus, or hammer, is a hammer-shaped small bone or ossicle of the middle ear. It connects with the incus, and is attached to the inner surface of the eardrum. The word is Latin for 'hammer' or 'mallet'. It transmits the sound vibrations from the eardrum to the incus (anvil).
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which of the following statements about the clonal selection theory of immune system function is false?
-a. antigens are recognized by receptor proteins inside the lymphocyte
-b. an activated lymphocyte makes many copies of itself in response to an infection
-c. cloned cells persist after the pathogen is eliminated
-d. each lymphocyte recognizes one antigen
Answers
The false statement about the clonal selection theory of immune system function is statement A, “antigens are recognized by receptor proteins inside the lymphocyte.” This statement is false because antigens are actually recognized by receptor proteins on the surface of the lymphocyte.
The clonal selection theory of immune system function states that when antigens enter the body, they are recognized by receptor proteins on the surface of the lymphocyte. This triggers the activation of the lymphocyte, which will then make many copies of itself in response to the infection. The cloned cells will persist in the body even after the pathogen has been eliminated. Each lymphocyte has the ability to recognize one antigen.
The clonal selection theory of immune system function is the basis for the human body’s ability to respond and protect itself from disease. It is a complex process that allows the body to recognize, fight, and remove foreign invaders, therefore protecting us from harmful bacteria and viruses.
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the brain area just anterior to the precentral gyrus that controls learned, repetitious, or patterned motor skills and coordinates simultaneous or sequential actions is the
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The brain area just anterior to the precentral gyrus that controls learned, repetitious, or patterned motor skills and coordinates simultaneous or sequential actions is the Premotor cortex.
The premotor cortex is an important part of the brain that is thought to have full influence over voluntary muscle movements. The premotor cortex is roughly six times the size of the primary motor cortex. The motor area of the premotor cortex is located anterior to the primary motor cortex. The premotor cortex is in charge of the body's more proximal muscles and trunk muscles.
The premotor cortex is in charge of organizing and planning activities and movements. Prefrontal and premotor neuron activity prompts activation of the primary motor cortex and spinal cord neurons.
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Which of the following represents an example of habitat suitability as an explanation of species abundance and distribution?
Group of answer choices (select all that apply)
Two closely related species of frogs have overlapping ranges and isolated on a single mountain.
As temperatures increase, tropical species are expanding their geographical range as more regions have preferred temperatures.
Darwin's finches are only found on the Galapagos islands because of dispersal limitations.
Answers
The following represents an example of habitat suitability as an explanation of species abundance and distribution : As temperature increase, tropical species are expanding their geographical range as more regions have preferred temperatures.
Tropical species are those that are indigenous to the tropics. Tropic rainforests, monsoonal tropical forests, dry (frequently deciduous) forests, spiny forests, deserts, savannahs, grasslands, and other habitat types can all be found in tropical ecosystems.
Because tropical rainforests receive constant warmth and rain, they are home to a diverse range of plants and animals. Monkeys, apes, gorillas, tigers, elephants, leopards, lizards, snakes, birds, and insects are among the most common animals found in rainforests.
Tropical climates are hot, humid, and rainy environments found primarily between the Tropics of Cancer and Capricorn. Tropical climates are classified into four types, according to Köppen: tropical rainforest, tropical monsoon climate, tropical savanna (dry winter), and tropical savanna (dry summer).
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A break in a blood vessel occurs and damaged cells release chemicals to begin the process of blood clotting. As clotting gets under way, signals are sent by cells for each step to release more chemicals that accelerate the process. Eventually the wall is patched and bleeding is stopped. While the cells are signalling, what type of feedback is occuring?
a.This process is not controlled through feedback.
b.Positive and negative feedback are occuring together.
c.Positive
d.Negative
Answers
Consequently, the right answer is (c) - Positive feedback
Damaged cells produce chemicals when blood vessels rupture, which starts the blood clotting process. Platelets then arrive at the wound site and begin to release chemicals that draw other platelets to the damaged area. This kind of binding is cooperative, thus one molecule indicates the release of another molecule. Clot formation is the end consequence, and as a result, bleeding is stopped. The cooperative binding is a form of positive feedback because each person contributes more.
Regarding the bad choices
a. Blood clotting involves positive reinforcement.
b. The only positive feedback loop that causes blood coagulation.
d. Blood clotting is not a function of it.
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identify three ways that sexual reproduction increases genetic variability. for each, explain how it increases genetic diversity among the offspring
Answers
Answer:
1.by pouring more water
2. by taking more heat which enough than usethey are termed dominant and ____, for the ____ allele typically masks the expression of the other allele when they are both located in the same cell.
Answers
They are termed dominant and Recessive, for the dominant allele typically masks the expression of the other allele when they are both located in the same cell.
Every gene in a species that reproduces sexually, including humans and other animals, has two copies. The two copies, which are referred to as alleles, may differ slightly from one another. The differences can alter protein expression or produce variations in the produced protein: when, where, and in what quantities protein is produced. Proteins influence traits, so varieties in protein movement or articulation can deliver various phenotypes.
The relationship between two gene versions is referred to as dominant. Each parent gives an individual two copies of each gene or allele. One allele will be expressed if a gene has different alleles; It is the most common gene. Masked is the effect of the other allele, which is called recessive.
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Which of the following is not a characteristic of a technically adequate PA chest radiograph?
O thoracic spine disc spaces should be barely visible through the heart. O the osseous detail of the thoracic spine is always clearly visualized. O the clavicular heads should be equal distance from the spinous process of the thoracic vertebral bodies.
O bronchovascular structures can usually be seen through the heart.
Answers
Option B is the correct. The osseous detail of the thoracic spine is always clearly visualized is not a characteristic of a technically adequate PA chest radiograph.
A good chest radiograph should be rotation-free. The medial borders of the clavicle should be equally spaced apart from the spinous processes of the vertebral bodies to confirm this. It's crucial to confirm that the patient has made a strong effort to inhale. It has a good inspiratory action and has 10 to 11 ribs. exposure: Films with good exposure show the shape of the spinal column and good lung detail. Rotation: Look for indwelling lines or objects; the distance between the medial clavicle and the edge of the next vertebrae should be about equal.
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Which enzyme synthesizes tRNA?
Reverse transcriptase
RNA polymerase
Aminoacyl-tRNA synthetase
Ribosomal RNA
DNA polymerase
Answers
RNA polymerase enzyme synthesizes tRNA in the cytoplasm of the cell.
A type of RNA molecule known as transfer ribonucleic acid (tRNA) aids in the translation of a messenger RNA (mRNA) sequence into a protein. During translation, the process of making a protein from an mRNA molecule, tRNAs act at specific locations in the ribosome.
An enzyme known as RNA polymerase is responsible for making mRNA, tRNA, and rRNA.
The genes for tRNAs and the smallest species of ribosomal RNA, 5S rRNA, are transcribed by RNA polymerase III. RNA polymerase III also transcribes some of the small RNAs (snRNAs and scRNAs) involved in splicing and protein transport, while others are polymerase II transcripts.
The mature tRNA in eukaryotes is made in the nucleus and sent to the cytoplasm for charging.
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22. The diagram shows how some organisms interact with each other.
What does the diagram represent?
A. The flow of energy throughout a population
B. The flow of energy throughout an ecosystem
C. The energy levels received by each organism
D. The energy levels received by each community
Answers
The diagram shows how some organisms interact with each other and represents the flow of energy throughout an ecosystem and is therefore denoted as option B.
What is Food web?This consists of all the food chains which are present n a single ecosystem and also shows the feeding relationship between organisms which are present in a community.
Food web consists of all the organisms in the ecosystem such as the primary producer in the form of plants and tertiary consumers in the form of bigger animals such as hawk, lion etc and how energy flows in the form of food.
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Which uses of soil are discussed in the video? Check all that apply.
O as a habitat for Smokey (the) bear
a O as a way to clean and store air
a O as a place for plants and crops to grow
O as a material to clean and smooth skin
O as a building material for homes and buildings
O as a way to prohibit public access to forests
Answers
Answer:
Explanation: 1. ahumic soil
2. clay -rich soils
3. loamy soil
4. multani soil
5. loam soil
6. mountain soil
Rabbits _______, whereas Pacific salmon _______.
O have embryonic diapause; do not
O are iteroparous; are semelparous
O have seasonal reproductive seasons; do not
O have internal fertilization; fertilize eggs with spermatophores
O are semelparous; reproduce only once
Answers
While Pacific salmon were semelparous, rabbits become iteroparous. used to characterize organisms with several generations of reproduction.
What kind of organisms are iteroparous?An organism that has many reproductive processes during its lifespan is said to be iteroparous. An illustration of an iteroparous organism is the pig. We come to the conclusion that the majority of insects might be called iteroparous rather than semelparous, meaning that many insects have various reproductive efforts during their adult lives.
Plants are they iteroparous?Whereas all angiosperms are semelparous, not everyone perennial flora are. This distinction is significant. Numerous species of animals and plants have long lifespans before experiencing a single, enormous, lethal reproductive episode.
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Part B - Relationship between population size and growth rate
A population of animals in a specific environment with a K of 2500 has rmax of 1.0 per individual per year and exhibits logistic growth as follows:
dN/dt}=rmax.N.(K-N)/K
Arrange the following population sizes in order of decreasing growth rate.
Rank the population sizes(N)from fastest to slowest growth rate. If two population sizes have the same growth rate, overlap them. (For help calculating growth rate, see Hint 1.)
Answers
Arrangement of the population sizes in the order of decreasing growth rate 1250> 1000 = 1500(same growth rate) > 750> 500> 250.
More and more of the offspring will survive if the rate of growth increases. As a result, there is a cumulative effect in which the slope gets steeper as the growth rate increases.
growth rate is given by as dN/dt=rmax.N.(K-N)/K
where r = 1.0 and K = 2500 are constant
at N = 750
dN/dt = 0.1 × 750 × (2500-750)/2500
= 52.5
at N = 500
dN/dt = 0.1 × 500 × (2500-500)/2500
= 40
at N = 1000
dN/dt = 0.1 × 1000 × (2500-1000)/2500
= 60.0
at N = 1250
dN/dt = 0.1 × 1250 × (2500-1250)/2500
= 62.5
at N = 250
dN/dt = 0.1 × 250 × (2500-250)/2500
= 22.5
at N = 1500
dN/dt = 0.1 × 1500 × (2500-1500)/2500
= 60
the more value of dN/dt, the more will be the growth rate.
hence, 1250> 1000 = 1500(same growth rate) > 750> 500> 250.
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Effervescence occurs when this mineral reacts with hydrochloric acid
Answers
Answer:
Magnesite
The mineral magnesite, which has a chemical composition of MgCO3, will effervesce weakly with warm hydrochloric acid and very weakly with cold acid.
This is a microscopic image of an animal tissue.
0800,00
Which type of animal tissue is shown in the image?
OA. Epithelial tissue
B. Muscular tissue
C. Nervous tissue
O D. Connective tissue
Answers
There is a microscopic image of animal tissue. The type of animal tissue shown in the image is epithelial tissue. The correct option is A.
What is epithelial tissue?The surface of the body is covered with epithelial tissue, which also coats internal organs and cavities and gives rise to glands.
In epithelial tissue, the cells frequently follow a predictable pattern and have uniform shapes and sizes. The tissue in the photograph resembles epithelial tissue in that it looks to be made up of cells that are layered, uniformly shaped, sized, and arranged in a single layer.
Therefore, the correct option is A. Epithelial tissue.
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The question is incomplete. Your most probably complete question is given below: the image is added.
Keratins, neurofilaments, and vimentins are all categories of intermediate filaments. Which of the following properties below is not true of these types of intermediate filaments?
(a) They strengthen cells against mechanical stress.
(b) Dimers associate by noncovalent bonding to form a tetramer.
(c) They are found in the cytoplasm.
(d) Phosphorylation causes disassembly during every mitotic cycle.
Answers
Keratins, neurofilaments, and vimentins are cytoplasmic intermediate filaments that are stable once formed. The nuclear intermediate filaments are disassembled and reformed during mitosis; this process is regulated by phosphorylation.
Phosphorylation is the connection of a phosphate group to a molecule or an ion in chemistry. This process, as well as its inverse, dephosphorylation, is common in biology and may be influenced by natural selection. Protein phosphorylation frequently activates a large number of enzymes. The inclusion of a phosphoryl (PO3) group in a chemical compound is known as phosphorylation. This reaction is critical in biological systems for the storage and transport of free energy via energy carrier molecules.
As a result, intermediate filaments can be found in incredibly durable structures such as hair, scales, and fingernails. Intermediate filaments' primary function is to promote cell cohesion and inhibit the acute fracture of epithelial cell sheets under tension.
Intermediate filaments are made up of smaller strands shaped like rods. Eight rods are aligned in a delayed arrangement with another eight rods, and these elements all twist together to form an intermediate filament's rope-like conformation.
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In fruit flies, the recessive pr and cn mutations cause brown and bright-red eyes, respectively (wild-type flies have brick-red eyes). The double mutant pr-cn combination has orange eyes. An F1 female who is wild-type is crossed to an orange-eyed male. Their F2 progeny have the following distributions:
Answers
| Wild Type | 8 |
| Brown | 241 |
| Bright-Red | 239 |
| Orange | 12 |
hormones often interact in an integrative way, producing different but complimentary results. examples of this include all of the following except .
Answers
hormones often interact in an integrative way, producing different but complimentary results, examples of this include all except lowering blood sugar by insulin.
integrative Effects In, hormones may have distinct effects that complement one another. explicit tissues and organs. Important are these integrative effects. in coordinating the various physiological systems' activities.
Insulin makes it easier for blood sugar to get into the cells of the body and be used for energy. Insulin additionally flags the liver to store glucose for some time in the future. When sugar from the blood reaches cells, levels in the bloodstream fall, prompting insulin to also fall.
thus, lowering blood sugar with insulin is not an integrative way.
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If the researchers monitored the cortical activity of the baboons as they viewed the color patches, they would most likely find increased activity in the:
A.occipital cortex.
B.temporal cortex.
C.somatosensory cortex.
D.motor cortex.
Answers
If the researchers monitored the cortical activity of the baboons as they viewed the color patches, they would most likely find increased activity in the Occipital lobe, where vision information is done.
The occipital lobe is the brain's visual processing area. It is linked to visuospatial processing, perception of distance and depth, color determination, object and face recognition, and memory formation.
The occipital lobes are situated at the back of the head and are in charge of visual perception, which includes color, form, and motion. Difficulty locating objects in the environment can be caused by occipital lobe damage. Difficulty recognizing colors (Color Agnosia)
Injury to the occipital lobes can cause vision problems such as blindness or blind spots, as well as visual distortions and inattention. The occipital lobes are also linked to a variety of behaviors and functions, such as visual recognition, visual attention, and spatial analysis.
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label the trna and mrna with the appropriate terms. also, determine the correct sequence of bases for trna and the correct amino acid for the trna (refer to the genetic code to determine the amino acid that is coded). there are six targets total. you will not use all of the terms
Answers
Labeling trna and mrna with appropriate terms is important for understanding how genetic information is encoded and translated. The correct sequence of bases for trna and the correct amino acid for trna must be determined in order to accurately carry out the translation process.
Trna is a type of RNA (ribonucleic acid) molecule that is responsible for transferring amino acids to the ribosome during translation. It has a specific sequence of three bases, known as the anticodon, that pairs with the corresponding codon on the mrna. The trna also carries an amino acid that is specific to the codon on the mrna.
Mrna is another type of RNA molecule that carries genetic information in the form of codons. Each codon is a sequence of three bases that codes for a specific amino acid. When the trna carrying the corresponding anticodon pairs with the codon on the mrna, the trna is able to bring the amino acid and pair it with the codon on the mrna.
To determine the correct sequence of bases for trna and the correct amino acid for the trna, the genetic code must be consulted. For example, if the codon on the mrna is AUG, the corresponding trna sequence would be UAC and the corresponding amino acid would be methionine.
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What role does deforestation play in Latin American politics?
Answers
Answer:
Deforestation is a significant issue in Latin American politics. It is a major contributor to climate change and has negative impacts on the environment and biodiversity in the region. Deforestation also has economic and social consequences, as it can lead to soil erosion and loss of valuable resources, such as timber and medicinal plants.
In recent years, deforestation has been a major focus of environmental policies in many Latin American countries. Governments have implemented a range of measures to address deforestation, including legislation to protect forests, support for sustainable agriculture and forestry, and initiatives to reduce illegal logging and land clearance.
However, deforestation continues to be a challenge in the region, and there are often conflicting interests between different stakeholders, including local communities, ranchers, loggers, and conservationists. As a result, deforestation remains a complex and contentious issue in Latin American politics.
in the cochlea, specialized cells called hair cells convert the vibrations into electrical signals. these signals are then sent through the auditory nerve to the brainstem, where they are further processed and sent to the auditory cortex in the brain. in the auditory cortex, the signals are interpreted as sound. the brain can identify the pitch, volume, and timbre of the sound, as well as locate the source of the sound and identify specific sounds within a mixture of sounds (such as a person speaking in a noisy room).
Answers
The fluid in the cochlea moves in response to vibrations from the oval window. 25,000 nerve endings are set in action when the fluid travels.
These nerve terminals convert vibrations into electrical impulses, which travel to the brain via the eighth cranial nerve (auditory nerve). It is made up of little hair cells that border the cochlea. These cells convert vibrations into electrical impulses, which sensory nerves carry to the brain.
Mechanical vibrations are transmitted. Hair cells of the Corti organ convert mechanical sound waves into nerve signals. When the basilar membrane, on which the organ of Corti lies, vibrates, they are activated.
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How would the life cycle of an animal RNA virus be affected if its Viral RNA polymerase enzymes were completely destroyed in the host cell's cytoplasm ?
Answers
Answer:
If the viral RNA polymerase enzymes were completely destroyed in the host cell's cytoplasm, it would severely affect the life cycle of an animal RNA virus. The viral RNA polymerase is an essential enzyme that is responsible for synthesizing viral RNA from a viral DNA template. Without this enzyme, the virus would be unable to replicate and produce new viral particles. This would ultimately halt the virus's life cycle and prevent it from spreading to other host cells.
A crucial enzyme that produces viral RNA from a viral DNA template is called viral RNA polymerase. The virus wouldn't be able to reproduce and create new viral particles without this enzyme.
What is RNA virus?An animal RNA virus's ability to replicate itself would be greatly hampered if the viral RNA polymerase enzymes were fully eliminated from the cytoplasm of the host cell.
To maintain their survival, RNA viruses take use of every known mechanism of genetic diversity.
High mutation rates, high yields, and quick replication timeframes are distinguishing characteristics of RNA virus replication. Because of this, RNA viruses reproduce as intricate and dynamic mutant swarms known as viral quasispecies.
Therefore, in the end, this would stop the virus's cycle and stop it from spreading to further host cells.
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Which of the following activities would be associated with the parasympathetic division of the autonomic nervous system? a. resting and digesting b. release of both acetylcholine and epinephrine c. increased heart rate d. "fight-or-flight" response e. release of epinephrine only
Answers
The activation of the parasympathetic branch of the autonomic nervous system is associated with resting and digesting.
What is the parasympathetic nervous system ?One of the two functionally separate and perpetually active divisions of the autonomic nervous system is the parasympathetic nervous system (PNS). It opposes the sympathetic nervous system, which is the other (SNS).
In calm "rest and digest" situations, the parasympathetic nervous system predominates, whereas the sympathetic nervous system activates the "fight or flight" response in stressful circumstances.
Therefore, The activation of the parasympathetic branch of the autonomic nervous system is associated with resting and digesting.
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Which of the following statements about sister chromatids is TRUE?
1. Sister chromatids are produced during mitosis.
2. Sister chromatids are held together by complementary base pairing of DNA at the centromere.
3. Sister chromatids are exact copies of each other and are formed just prior to cell division.
4. After mitosis, sister chromatids contain the same genes, but they may have different alleles.
5. All of these statements about sister chromatids are TRUE.
Answers
Answer: Sister chromatids are exact copies of each other and are formed just prior to cell division
Explanation:
I took the quiz, I hope this helped!
The true statement about sister chromatids is: "Sister chromatids are exact copies of each other and are formed just prior to cell division". The correct option is 3.
What is the correct statement for sister chromatids?During the S phase of the cell cycle, the DNA within a cell is replicated, creating identical copies of each chromosome called sister chromatids.
These chromatids are held together at the centromere and are separated during cell division (mitosis or meiosis) to ensure that each daughter cell receives an equal amount of genetic material.
The correct statement about sister chromatids is: Sister chromatids are exact copies of each other and are formed just prior to cell division.
Therefore, the correct option is 3.
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