Microbes may be tiny, but that doesn’t stop some of them from causing major destruction. Even supervillains like Lex Luthor or Doctor Doom were never able to pull off as much devastation as the bugs that cause bubonic plague or malaria. It turns out it’s hard to find a good opportunity to study harmful, contagious diseases. It’s just not safe. One option is to study an epidemic that doesn’t affect humans—but then it’s hard to track the disease, since animals don’t check into hospitals.
The answer is Pathogenic parasites.
Relationship type that exists between the birds and the bacterium:
Microbes may be tiny, but that doesn’t stop some of them from causing major destruction. Even supervillains like Lex Luthor or Doctor Doom were never able to pull off as much devastation as the bugs that cause bubonic plague or malaria. It turns out it’s hard to find a good opportunity to study harmful, contagious diseases. It’s just not safe. One option is to study an epidemic that doesn’t affect humans—but then it’s hard to track the disease, since animals don’t check into hospitals.
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The jaguar is a top predator that helps to regulate other populations in the rain-forest.It produces wastes that are broken down to nutrients by decomposers. Microorganisms live in its fur and it may also be home to some parasites.This description describes the jaguar's _________________ .
Final answer:
The description of the jaguar pertains to its ecological roles as a top predator, a contributing factor to nutrient recycling through decomposers, and its support to biodiversity and forest dynamics through habitat provision and seed dispersal.
Explanation:
The jaguar's role in the rainforest ecosystem can be described by addressing various ecological aspects. Jaguars are top predators that regulate populations of other species by hunting and consuming them. This ensures species do not overpopulate and resources are not depleted. As part of the food web, jaguars control prey populations and maintain the balance within their ecosystem.
Jaguars also contribute to nutrient cycling through their waste. Decomposers such as fungi and bacteria break down these organic materials, releasing nutrients back into the soil, which are essential for plant growth and help sustain other organisms in the rainforest. This includes macro and micro elements like nitrogen and phosphorus.
Beyond that, jaguars support biodiversity by providing habitats for various microorganisms in their fur and by acting as hosts for parasites. Lastly, as large mammals, they can affect the forest dynamics through seed dispersal via their droppings, promoting plant diversity and forest regeneration.
Thus, this description details the jaguar's ecological roles in the rainforest, including predator control, nutrient recycling, and habitat provision, as well as seed dispersal, reinforcing their status as a keystone species in their habitat.
Arrange the sequence of events at the NMJ from first to last. Rank the sequence of events at the NMJ that initiate an action potential in the muscle fiber, from first to last. View Available Hint(s) ResetHelp Action potential arrives at the axon terminal.Action potential arrives at the axon terminal. Acetylcholine binds to its receptors on the junctional folds.Acetylcholine binds to its receptors on the junctional folds. Calcium ions enter the axon terminal.Calcium ions enter the axon terminal. Synaptic vesicles fuse to membrane of axon terminal.Synaptic vesicles fuse to membrane of axon terminal. Junctional folds become depolarized.Junctional folds become depolarized. Action potential is initiated on the sarcolemma.Action potential is initiated on the sarcolemma. Acetylcholine is released into the synaptic cleft.Acetylcholine is released into the synaptic cleft.
The events at the neuromuscular junction (NMJ) that initiate an action potential in a muscle fiber involve action potential reaching the axon terminal influx of calcium ions release of acetylcholine into the synaptic clef binding of acetylcholine depolarization of muscle fiber and initiation of action potential on sarcolemma.
Explanation:The sequence of events at the NMJ (Neuromuscular Junction) that initiates an action potential in the muscle fiber follows a specific order:
Action potential arrives at the axon terminal of a motor neuron. Calcium ions enter the axon terminal prompted by the action potential. Synaptic vesicles fuse to the membrane of the axon terminal, prompted by the influx of calcium ions. Neurotransmitter acetylcholine is released from these vesicles into the synaptic cleft. The released acetylcholine binds to its receptors on the junctional folds of the muscle fiber. Folds become depolarized as positive ions pass into the muscle fiber. This depolarization initiates the action potential on the sarcolemma of the muscle fiber. Learn more about Neuromuscular Junction here:
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This sequence accurately describes the process of neurotransmission at the NMJ, which is critical for the activation of muscle fibers."
"The correct sequence of events at the neuromuscular junction (NMJ) that initiate an action potential in the muscle fiber, from first to last, is as follows:
1. Action potential arrives at the axon terminal.
2. Calcium ions enter the axon terminal.
3. Synaptic vesicles fuse to the membrane of the axon terminal.
4. Acetylcholine is released into the synaptic cleft.
5. Acetylcholine binds to its receptors on the junctional folds.
6. Junctional folds become depolarized.
7. Action potential is initiated on the sarcolemma.
Here is the detailed explanation and logic behind the sequence:
1. Action potential arrives at the axon terminal. This is the initial event that triggers the subsequent release of neurotransmitters. The action potential travels down the motor neuron until it reaches the axon terminal.
2. Calcium ions enter the axon terminal. The arrival of the action potential at the axon terminal opens voltage-gated calcium channels, allowing calcium ions to flow into the terminal from the extracellular space.
3. Synaptic vesicles fuse to the membrane of the axon terminal. The influx of calcium ions triggers a cascade of events that lead to the fusion of synaptic vesicles, which contain acetylcholine, with the presynaptic membrane.
4. Acetylcholine is released into the synaptic cleft. Once the synaptic vesicles fuse with the membrane, they release their contents, including acetylcholine, into the synaptic cleft.
5. Acetylcholine binds to its receptors on the junctional folds. Acetylcholine diffuses across the synaptic cleft and binds to acetylcholine receptors located on the junctional folds of the muscle cell membrane (sarcolemma).
6. Junctional folds become depolarized. The binding of acetylcholine to its receptors opens ion channels, leading to an influx of sodium ions and an efflux of potassium ions, which causes a local depolarization of the muscle cell membrane at the junctional folds.
7. Action potential is initiated on the sarcolemma. If the depolarization at the junctional folds is sufficient to reach the threshold, it will trigger an action potential that propagates along the sarcolemma, leading to muscle contraction.
Use of antibiotics in animal feed leads to antibiotic-resistant bacteria because
Answer:
The correct option is D.
Explanation: The options attached to this question are given below:
A) Bacteria from other animals replace those killed by the antibiotics.
B) The few surviving bacteria that are affected by the antibiotics develop immunity to the antibiotics, which they pass on to their progeny.
C) The antibiotics cause new mutations to occur in the surviving bacteria, which results in resistance to antibiotics.
D) The antibiotics kill susceptible bacteria, but the few that are naturally resistant live and reproduce, and their progeny repopulate the host animal.
E) The antibiotics persist in soil and water.
Antibiotics are sometimes used in animals to control infections. With time, the microbes that are been targeted with the antibiotics usually develop mutations, which makes the antibiotics to become ineffective, thus, the antibiotics will only be able to kill the susceptible microbes while the ones that have developed resistance will remain and give birth to young ones that are also resistant to antibiotics.
The practice of adding antibiotics to animal feed results in the development of antibiotic-resistant bacteria because it encourages the survival of resistant strains, which can be transmitted to humans.
The use of antibiotics in animal feed leads to antibiotic-resistant bacteria because these drugs are given to livestock in low doses, which promotes the survival and reproduction of bacteria that are naturally resistant to antibiotics. In the United States, it is estimated that 70% of the antibiotics produced are fed to animals as a way to enhance production, rather than to prevent disease. This practice encourages the natural selection of resistant strains of bacteria, which can then be transferred to humans, increasing the challenge of treating bacterial infections effectively. The emergence of antibiotic-resistant bacteria due to the excessive use of antibiotics in livestock highlights the need for more judicious use of these drugs, including regulatory changes and increased public awareness.
Please help me out with these practice questions.
Thank you!
Answer:
1. B.
2. B.
3. A.
Explanation:
1. So, the mother does not but the father does carry the gene for polydactyly. Which means that, the offspring was born Pp and, the dominant trait (P) was exposed.
2. A heterozygous trait is one that has both allele forms (in this case, d and D. If both of the parents are Dd, the offspring will also be Dd, and therefore, he has 1/2 chance of being born deaf.
3. Both you and your spouse will be heterozygous (Ee), therefore, since unattached earlobes are dominant
3.1 When two heterozygous traits are bred, you will get the following combinations: yy, Yy, Yy and YY. Which means that your offspring had a 1/4 chance of having attached earlobes, and that is what happened.
3.2 The third option is incorrect, because when you breed 2 homozygous recessive (ee) traits, all of your offspring will be homozygous recessive (ee), which means that the parents would have to be homozygous recessive, but, they cannot since the dominant trait has applied to them.
How do scientists recognize that a climax community has been reached? A. The succession of community is completed. B. No more natural resources are available to support the community. C. The population of a community stabilizes and doesn't change in size or scope. D. The environment is unable to cause changes to that community.
Answer: A. the succession of community is completed
Explanation:
GeoPanther ur answer is wrong, just retook my test and C was wrong, it showed me the correct answer
A climax community is indicated by the stabilization of a community's population and composition, which remains unless a significant disturbance occurs, resulting in the final stage of ecological succession.
Explanation:Scientists recognize that a climax community has been reached when they observe that the population of a community stabilizes and doesn't significantly change in size or scope, indicating the final stage of ecological succession. This means the succession of communities is completed, resulting in a stable balance of all organisms within the ecosystem.
The climax community will remain relatively stable unless a significant disturbance, like a disaster, alters the ecosystem, starting succession anew. It is important to note that what constitutes a climax community can vary greatly depending on the region's climate and geology, such as tropical rainforests in the tropics or coniferous forests in northern areas.
Consider the status of the black-footed ferret. What is the MOST logical contributing factor to its endangered status? A) The exponential growth of ferret predator populations. B) Human encroachment that has greatly reduced the prairie dog populations. C) The growing habitat range of the prairie dog populations throughout the United States. D) Climatic change that has significantly modified the climate of the central United States.
Answer:
the correct answer is A
Explanation:
if the preys PREDATOR GROWS then the prey lowers
Region of the cell body from which the axon originates
Answer:
Axon hillock
Explanation:
Neuron or nerve cell is excitable cell of the nervous system which consists of cell body or soma (karyon), dendrites and an axon. Dendrites are short, numerous filaments responsible for the signal receiving. On the other hand, axon is long ant it originates form the cell body from the swelling called axon hillock. At the end of an axon there are axon terminals from which neuron can transmit a signal another cell.
The axon hillock, a region in the neuron's cell body, is where the axon originates. It is crucial in initiating the action potential, a key part of nerve communication.
Explanation:The region of the cell body from which the axon originates in a neuron is known as the axon hillock. This specialized part of the cell body, or soma, is where the cell's cytoplasm transitions to the axon and is important in the generation of nerve impulses. The axon hillock is responsible for initiating the action potential, a critical component of nerve communication.
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Which of the following mechanisms produces the most ATP during cellular respiration?
A) oxidative phosphorylation
B) substrate-level phosphorylation
C) oxidation-reduction reactions
D) oxidation reactions
Answer:
A) oxidative phosphorylation
Explanation:
cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.
Oxidative phosphorylation is the mechanism in cellular respiration which produces the most ATP. It is the last stage of cellular respiration and can generate up to about 34 ATPs per glucose molecule.
Explanation:During the process of cellular respiration, the mechanism that produces the most ATP is oxidative phosphorylation(A). This process is the final stage of cellular respiration and occurs in the mitochondria. Its main function is to transport electrons from NADH and FADH₂ through the Electron Transport Chain (ETC) to oxygen, which serves as the final electron acceptor. This process results in the formation of water and the generation of a proton gradient, which subsequently powers ATP synthesis. Compared to the other options, substrate-level phosphorylation, oxidation-reduction reactions, and oxidation reactions, oxidative phosphorylation produces significantly more ATP - up to about 34 ATPs per glucose molecule.
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The food web illustrated above shows plants and animals, but does not indicate bacteria. If bacteria were truly missing from this food web, what is the most likely effect on the community?
A. Grasshoppers would eat at a lower level of the food chain without bacterial presence.
B. Rhinoceros would become carnivores without the digestive aid of prokaryotes in their gut.
C. Decomposition rates would be lower, resulting in fewer nutrients being able to the plants.
D. Cellular respiration rates would increase in heterotrophs since competition for resources would decrease.
Answer: (C)
Explanation: well bacteria is what decomposes and eats the nasty food or dead things that are no longer living. The bacterias eat on these things causing them to break down in to nutrients which are very very good for plant growth. If we didnt have our bacteria things would not decompose fast enough making nutrients for plants almost impossiable and if this happend animals would not be able to feed of plants or trees
If you could i really need brainlist it would be greatly appreciated :)
In a food web, if bacteria were missing, the community would likely face reduced decomposition rates, resulting in fewer nutrients available for plants. Bacteria are key to decomposition, converting dead organisms and waste into simpler substances for plants to use as nutrients. Without bacteria, this nutrient cycle would be affected.
Explanation:In this food web, if bacteria were truly absent, the most likely effect on the community would be reduced decomposition rates, which would in turn prevent nutrients from being recycled back into the soil for plants to use. This can be represented by option C: Decomposition rates would be lower, resulting in fewer nutrients being available to the plants.
Bacteria are a crucial part of the decomposition process as they break down dead organisms and waste products, converting these materials into simpler substances that can be used by plants as nutrients. This cycle is essential in every ecosystem as it ensures that nutrients are not lost but are instead recycled. Hence, without bacteria, this decomposition process will be hindered, affecting nutrient cycling and the health of the community.
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If a person suffered a stroke which brain region is damaged
Answer:
The right side
Explanation:
When apples were introduced to North America some individuals of a species of maggots that fed in hawthorns began to grow in apples. Over time a species that fed exclusively on apples emerged and became separate from the species that fed on hawthorns. This type of speciation is called
A. Sympatric speciation
B. Allopatric speciation
C. Parapetric speciation
D. Peripatric speciation
Answer:
A
Explanation:
i think sorry if im wrong
Audiometry confirms a client's chronic progressive hearing loss. further investigation reveals ankylosis of the stapes in the oval window, a condition that prevents sound transmission. this type of hearing loss is called:
Answer: conductive hearing loss
Explanation:
PLEASE HELP ASAP - 15 POINTS
Energy from the Sun enters ecosystems through the transformation of light to chemical energy. This energy is available to different organisms based on the trophic level in which the organisms exist. Which statement BEST describes the availability of energy for organisms in different trophic levels?
A. Primary consumers have the least energy available.
B. Available energy decreases as trophic levels increase.
C. Available energy increases as trophic levels increase.
D. Tertiary consumers have the most energy available.
Answer:
the answer is b
Explanation:
Available energy decreases as trophic levels increase. Therefore, option (B) is correct.
This is because energy is lost at each step in the food chain due to inefficiencies in energy transfer and metabolic processes. Primary producers, such as plants, convert a small portion of the Sun's energy into chemical energy through photosynthesis. Primary consumers, such as herbivores, eat the plants and extract some of the stored energy.
However, only a portion of the energy in the plants is converted into the herbivore's biomass, and some energy is lost as heat and waste products. Secondary consumers, such as carnivores, eat the herbivores and extract even less energy. Tertiary consumers, such as top predators, eat the carnivores and extract the least amount of energy. Therefore, the energy available to organisms decreases as you move up the trophic levels.
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The most common kind of dispersion in nature is
A) clumped.
B) random.
C) uniform.
D) indeterminate.
E) dispersive.
Answer:clumped is the most common kind of distribution in nature
Explanation: trust me
I believe the answer would be a clumped as well
Agile methods in science engineering take which of the following approaches towards creating solutions?
A. Create multiple hypotheses about why a phenomenon is occurring and conduct research on all the possible outcomes.
B. Focus on more than one problem at a time so the project team can spread out their resources.
C. Quickly generate and implement solutions to assess the fit of the solutions to the problem.
D. Carefully generate several solutions and build them to test all at the same time
Answer:
Option C, Quickly generate and implement solutions to assess the fit of the solutions to the problem.
Explanation:
Agile methodology is a tool through which continuous iteration is done to provide solution which could fit in the development process of software for a better design. Through this method errors could be easily fixed in the middle of any project. Each iteration procedure is followed by a testing procedure whenever a new function or logic is released.
Hence, option C is correct.
What is the correct order of structures as you move from outside a muscle cell
Answer:
This is from the smallest to largest:
myofilament, sarcomere, myofibril, muscle fiber, fascicle, muscle
Explanation:
A muscle consists of many muscle tissues which are bundled together and surrounded by epimysium. Epimysiuma is tough connective tissue similar to cartilage. The epimysium surrounds bundles of nerve cells that run in long fibers, called fascicles. The above is the order of the structures that are protected.
Placards and labels on a storage container are intended to: select one:
a. provide specific information about the chemical being carried.
b. give a general idea of the hazard
Answer:
Placards and labels on a storage container are intended to: give a general idea of the hazard . (b.)
Placards and labels on a storage container fulfill a dual purpose. They provide specific information about the chemical being carried, and they also give a general idea of the hazard to promote safety. The presence of this information also helps in effective chemical management during any emergency situation.
Explanation:Both options a and b are correct. The placards and labels on a storage container serve a dual purpose. Firstly, they provide specific information about the chemical being carried, including its name, characteristics, and potential hazards. Secondly, they also give a general idea of the hazard presented by the chemical, helping to keep those handling or near the chemical safe.
Additionally, by having this information readily available, anyone responding to an accident or spill involving the chemical can quickly and easily identify it and determine the best course of action. This aids in effective chemical management and promotes safety in a broad range of industries, from manufacturing and transportation to health care and science laboratories.
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In a series of experiments, Avery treated heat-killed nonvirulent S bacteria with enzymes that degraded the proteins, DNA, and RNA of the S bacteria, then mixed this with nonvirulent R bacteria. S cells grew in all cases except the samples with degraded DNA. What did this demonstrate?
A. Protein, DNA, and RNA from the S bacteria are all necessary for bacterial transformation to occur.
B. DNA from the S bacteria is necessary for bacterial transformation to occur.
C. RNA from the S bacteria is necessary for bacterial transformation to occur.
D. Protein from the S bacteria is necessary for bacterial transformation to occur.
Answer:
The correct answer would be option B.
Avery experiment proved that DNA is used as the genetic material in most of the living organisms.
It can be explained with the help of observation that when the S bacteria were treated with DNAase, they could not transfer their DNA to the R bacteria. Consequently, R bacteria did not transform into S bacteria.
In contrast, when these bacteria were treated with protease or RNAase, they could transfer DNA easily due to which R bacteria could easily transformed into S bacteria.
Answer:
B
Explanation:
When heat-killed nonvirulent S bacteria will be treated with enzymes that degraded DNA it will destroy the genetic information required for cell survival. DNA is very essential for an organism and is called the molecule of life. DNA degradation is also a part of cell death called apoptosis. That's why all the samples grew except the one where DNA was enzymatically degraded.
Pheasants do not feed their chicks. Immediately after hatching, a pheasant chick starts pecking at seeds and insects on the ground. Based on your understanding of animal behavior, what is a reasonable explanation for these observations?A. Pecking is an example of associative learning.B. Pecking is the result of imprinting during a critical period.C. Pheasants learned to peck, and their offspring inherited this behavior.D. Pheasants that pecked immediately after hatching had the highest survival and reproductive success
Answer:
D. Pheasants that pecked immediately after hatching had the highest survival and reproductive success
Explanation:
This means that behavior of pecking increased their survival and reproductive success and become favorable by natural selection.
Natural selection is evolutionary mechanism which favours traits (structures, behavior) of an organism that help him survive and reproduce. In the example, above, pheasants that pecked survived and that was the favorable trait by natural selection.
_________________________________ is the process that explains this survival and shows how species can change over time.
Answer:
Natural selection/ Darwinism
Explanation:
Natural selection is the theory that in a species, those that survive will pass on the better traits, thus evolving the species or changing them.
Which of the following conditions is the most likely indicator of a population in an extinction vortex?A) The species in question is found only in small, stable pockets of its former range.B) The effective population size of the species falls below 1,000.C) Genetic measurements indicate a loss of genetic variation over time.D) The population is permanently small.
C. Genetic measurements indicate a loss of genetic variation over time
The most likely indicator of a population in an extinction vortex is when the population is permanently small.
Explanation:The most likely indicator of a population in an extinction vortex is when the population is permanently small (option D). This means that the population size is consistently low and does not increase over time. In an extinction vortex, the population is unable to grow and is at a high risk of eventually becoming extinct.
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Scientists have genetically engineered certain species to be more resistant to freezing temperatures. This was accomplished by scientists altering the
Answer:
genes
Explanation:
Scientists engineer crops to resist freezing temperatures by altering an organism's genetics, often transferring cold resistance genes from one species to another to create genetically modified organisms. Genetic engineering enhances agriculture but also raises safety and environmental concerns.
Scientists have genetically engineered certain species to be more resistant to freezing temperatures by altering the genetics of these organisms. They utilize genetic engineering to transfer genes that are responsible for cold resistance from one species to another. For instance, a gene giving antifreeze properties from an arctic fish can be spliced into the DNA of a tomato plant, resulting in a genetically modified organism (GMO) that can withstand colder climates. This technique is part of biotechnology and aims to enhance agricultural productivity by creating crops that can endure challenging conditions such as frost, which would normally destroy them.
The field of biotechnology and genetic engineering has led to the creation of transgenic plants and animals. This technology is applied not just to increase freeze tolerance, but also to enhance resistance to diseases, pests, and pesticides, improve nutritional content, and aid in the ripening process of food crops. While the development of genetically modified foods has primarily been driven by the goal of improving crop yields and quality, it has also raised issues concerning consumer safety and environmental implications.
Turning off these genes ca cause less mature cells to divide too rapidly.What could this lead to the development of
Answer:human body
Explanation:
Which term best describes a condition that presents with the symptoms of petechiae, easy bruising, bleeding gums, occult hematuria, or retinal hemorrhages?
Answer:
Contractile
Explanation:
What does it mean to say that an allele is lost?
Answer:
It means it disapear from the population during a certain time period
Explanation:
Lost allele often refers to fixed allele and it is a phenomenon when only one allele of a gene is present in the population. This event occurs usually as a consequence of a disaster, for example forest fire. After the disaster, only certain individuals survive with the fewer alleles that the initial population. Other alleles are lost.
All of the following are true of the subcutaneous layer, except A) it contains many blood vessels.B) it permits independent movement of deeper structures.C) it contains large amounts of adipose tissue.D) it is attached to the dermis by a basement membrane. E) it is well supplied with nerves that pass into the skin.
The subcutaneous layer contains blood vessels, adipose tissue, and nerves, and allows for the independent movement of deeper structures. It is not attached to the dermis by a basement membrane.
Explanation:All of the following are true of the subcutaneous layer, except statement D. This layer, also known as the hypodermis, does contain many blood vessels (A) and large amounts of adipose tissue (C).
It does permit independent movement of deeper structures (B) and is well supplied with nerves that pass into the skin (E). However, it is not attached to the dermis by a basement membrane (D).
Instead, its connection to the dermis is more complex and involves collagen and elastic fibers.
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Which describes a grizzly bear's habitat? All the biotic factors in the ecosystem all the abiotic factors in the ecosystem the role of the bear in the ecosystem the physical area where the bear lives
A habitat contains the homes or habitats of these species... It is the actual home of all species... Our houses are actually our habitats...
Therefore, the answer is:
the physical area where the bear lives
Answer:
The physical area where the bear lives
Explanation:
Habitat refers to the natural environment or the natural place where an organism lives. Habitat also refers to the physical place where a species or a population lives. Hence, habitat of grizzly bear refers to the physical place where it lives. Biotic and abiotic components of habitat together make an ecosystem.
_____________ refers to the process where a plant absorbs carbon dioxide from the atmosphere and then stores carbon in its roots.
Photosynthesis is the answer, I'm like 85% sure...
HELP ASAP!!! Will give brainliest and 50 points!!!
1. In pea plants, the gene for the color of the seed has two alleles. In the following Punnett square shown below, the dominant allele (Y) represents yellow and the recessive allele (y) represents green.
Based on the Punnett square, what percentage of offspring would be expected to have yellow seeds?
A. 0%
B.25%
C. 50%
D. 100%
2. A tall pea plant (Tt) is crossbred with another tall pea plant (Tt). The following Punnett square shows the separated alleles for two pea plants.
Which of the following shows the correct match of the box numbers and the genotype of the offspring?
A 1 = Tt; 2 = tt; 3 = Tt; 4 = tt
B 1 = Tt; 2 = Tt; 3 = Tt; 4 = Tt
C 1 = TT; 2 = Tt; 3 = Tt; 4 = tt
D1 = TT; 2 = TT; 3 = Tt; 4 = tt
The percentage of offspring would be expected to have yellow seeds is C. 50%. The correct match of the box numbers and the genotype of the offspring is C. 1 = TT; 2 = Tt; 3 = Tt; 4 = tt
How to determine percentage and genotype?In the Punnett square for the gene determining seed color in pea plants, if the dominant allele (Y) represents yellow and the recessive allele (y) represents green, the possible genotypes for the offspring are YY, Yy, Yy, and yy. Only the first two genotypes (YY and Yy) will result in yellow seeds.
Therefore, 75% of the offspring would be expected to have yellow seeds.
In the Punnett square for the cross between two tall pea plants (Tt x Tt), the possible genotypes for the offspring are TT, Tt, Tt, and tt. Looking at the box numbers:
Box 1: TT
Box 2: Tt
Box 3: Tt
Box 4: tt
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A fly has two alleles for the color of its eyes. the green allele is recessive, and is represented by q. the blue allele is dominant, and is represented by p. if 71 of 100 organisms are green, what is p
Answer:
[tex]p = 0.29\\[/tex]
Explanation:
According to the Hardy Weinberg’s equation –
The sum of frequencies of all the allele with in a given population is equal to one around the locus.
Thus, if p is frequency of trait “A” and q is frequency of trait “B”, then the sum of the allele frequencies i.e p and q is 1
[tex]p + q = 1[/tex] -------------------- Equation (a)
So, if 71 out of 100 organisms are green, then q would be
[tex]= \frac{71}{100}[/tex]
[tex]= 0.71\\[/tex]
Putting the value of q in equation "a" we get -
[tex]p + 0.71 = 1\\p = 1 - 0.71 \\p = 0.29[/tex]
Answer:
0.16
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