You have sampled a population in which you know that the percentage of the homozygous recessive genotype (aa) is 25%. Calculate the frequency of the "A" allele. *
1 point
0.5
0.4
0.25
0.6
Answers
Answer:
.5
Explanation:
Remember that p = dominant allele, q = recessive allele. Use the Hardy-Weinberg equations:
p^2 + 2pq + q^2 = 1 (AA + Aa + aa = 1)
So aa = q^2. Take the square root, and we'll have just q by itself.
√a^2 = √.25 = .5
So the frequency of the a allele (recessive) = .5.
p + q = 1
p + .5 = 1
p = .5
The frequency of the A allele is .5.
Related Questions
Can an enzyme be recycled? Explain.
Answers
Answer:
Enzymes serve as catalysts to many biological processes, and so they are not used up in reactions and they may be recovered and reused. However, in a laboratory setting, reactions involving enzymes can leave the enzyme unrecoverable. This process makes the enzyme at once less reactive but more stable.
Which animal will be able to control its body temperature the best?
O animals with a low surface to volume ratio
O amphibians
O ectotherms
O animals with a high surface area to volume ratio
Answers
Answer:
Ectotherms
Explanation:
Ectotherms have developed several behavioral thermoregulation mechanisms, such as basking in the sun to increase body temperature or seeking shade to decrease body temperature. Therefore the answer is Ectotherms.
Answer:
question 1 answer: "sweating"
question 2 answer: "glycolysis -- krebs cycle -- electron transport chain"
question 3 answer: "36 ATPs"
question 4 answer: "the mitochondria"
question 5 answer: "animals with a low surface volume ratio"
Explanation:
i finished the quick check UwU
The carbon reactions of photosynthesis are also known as the ______, which occur in the stroma of chloroplasts.
Answers
Answer: calvin cycle
Explanation:
What is the difference between an observation and an inference? Give examples.
Answers
Answer:
Define observation and an inference:
An observation is something you sense: taste, touch, smell, see, or hear.
An inference is something you decide or think about a thing or event after you observe it.
The Difference
An observation is something you observe. Something you or others sense. While an inference is something you infer about someone, something, or even a situation. The difference is when you experiment something, you make a hypothesis, or in this case, an inference. An inference about what you think will happen (guess/theory). The next step is to observe the object or what you're focusing on. Therefore, the two are not one and the same, but very different.
Explanation:
Observation (examples):
The watching of Haley's Comet. Or making the statement that a teacher is proficient from watching him teach several times.
Inference (examples):
If you someone eating new food and he or she makes a face, then you infer he does not like it. Or if someone slams a door, you can infer that she is upset about something.
Which of these foods is actually a fruit in plant biology?
Onion
Pepper
Mushrooms
All of the above
Answers
Pepper is actually a fruit in plant biology.
The flowering plant known as black pepper (Piper nigrum), which belongs to the Piperaceae family, is grown for its peppercorn-shaped fruit, which is often dried and used as a spice and condiment. The fruit is a drupe (stonefruit), and it is dark red, about 5 mm (0.20 in) in diameter when it is fresh and fully grown, and it has a stone within that carries a single pepper seed. Simply called pepper, peppercorns and the ground pepper made from them can also be more specifically referred to as black pepper (cooked and dried unripe fruit), green pepper (dried unripe fruit), or white pepper (ripe fruit seeds). The Malabar pepper is widely grown there and in other tropical areas. Black pepper is a native of India's Malabar Coast.
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A. Transcribe and translate the normal and sickle cell DNA.
b. Identify this as a point or frameshift mutation. Explain.
c. If the base sequence read GGG CTT CTT AAA instead, would this result in sickle cell
hemoglobin? Explain.
Answers
A. The beta-globin gene's typical DNA sequence, which codes for the beta component of haemoglobin. B. The sequence has a single base (GAG) inserted as a result of a point mutation, more precisely an insertion mutation.
AAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG G The additional GAG is introduced into the sickle cell DNA sequence, which is AAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG. This causes the amino acid glutamic acid to convert to valine at the beta-globin subunit's sixth position. In (b), point mutations are alterations to a single DNA base that fall within the transitional or transversional categories (purine to purine or pyrimidine to pyrimidine) (purine to pyrimidine or vice versa). Insertions or deletions of one or more nucleotides result in frameshift mutations.
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Which is an example of a neutral mutation? one that causes abnormal human skin cells to reproduce and divide rapidly, producing a mole one that increases the size of a seed pod, allowing the seeds inside to be spread and eventually grow one that results in smooth plant leaves, while not changing the function of the leaves one that brightens the feathers of a bird, making it easier for other animals to see it
Answers
Answer:
c
Explanation:
Answer: c
Explanation:
not because I got it myself but because the other dude is right
A benefit of moderate physical activity is the reduction in risk of hypokinetic disease and early death.
Answers
An individual with sedentary lifestyle might be at risk for hypokinetic diseases such as high blood pressure. Moderate physical activity such as walking and biking gives a great benefit to avoid such risk. Moderate physical activity can reduce major medical conditions that might lead to early death. Too little movement or activity might lead to hypokinetic diseases. Regardless of the intensity of the physical activity, it will lower the risk of an early death due to hypokinetic diseases.
what variables does this graph display? Be specific about each variable
Answers
What best labels letter x and y?
Answers
Answer:
X = root system
Y = shoot system
Explanation:
Will award 70 points!
Calculate the rate of photosynthesis(mm/hr) for Elodea if when measuring net photosynthesis, the water level moved up 5 min and, when measuring cellular respiration it took 20 minutes for the water level to move down 1mm.
63mm/hr
57mm/hr
67mm/hr
61mm/hr
52mm/hr
Answers
Answer:
Net photosynthesis- 3mm/20min- 1.5mm/10min
Cellular respiration- 1mm/15min- 0.66mm/10min
Gross photosynthesis = Net photosynthesis + Cellular respiration = 1.5+0.66 = 2.16 (mm/10min)
Rate of photosynthesis = (gross photosynthesis)6 = 2.16 *6 = 12.96 mm/hr
As we are measuring rate of photosynthesis in hr ,we should multiply gross photosynthesis with 6 (as we measured gross photosynthesis for 10 min).
Explanation:
Explain the protective significance of chromosomes condensing into tight coils during mitosis.
Answers
Answer:
Chromosomes condense before mitosis to allow them the ability to move smoothly, without becoming entangled and breaking. (So, they are conveniently packaged for cell division, in which the chromosomes must move to both poles of the cell.)
Explanation:Otherwise it would be a mess as they get tightly packed
What will happen in the future if we keep on using our non-renewable resources?
Answers
The most well-known impact of using non-renewable energy sources is the emission of greenhouse gases such as carbondioxide gas etc.
What will happen if we continue to use non-renewable resources?We pursue to use of non-renewable resources, in specific, carbon dioxide and methane give to climate change. Different types of non-renewable energy fuels emit high levels of greenhouse gases.
Minerals is used for making metals which are also non-renewable natural resources. Nonrenewable natural resources take extended than a person's lifespan to be returned. In fact, Non-renewable energy can take millions of years to form. Fossil fuels such as oil, coal, and gas will not last forever.
So we can conclude that The problem with non-renewable energies is the ecological impact of non-renewable energies · The fuel of climate change.
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which of the following groups would be most likely to exhibit uniform dispersion?a) red squirrels, who actively defend territoriesb) cattails, which grow primarily at edges of lakes and streamsc) dwarf mistletoes, which parasitize particular species of forest treed) lake trout, which seek out cold, deep water high in dissolved oxygen
Answers
The group most likely to exhibit uniform dispersion would be (a) red squirrels, who actively defend territories. Uniform dispersion is a type of population distribution where individuals are evenly spaced throughout a habitat.
This pattern typically occurs when individuals actively compete for limited resources or space. Red squirrels are known for being territorial and fiercely defending their space, which can lead to evenly spaced individuals in a population.
In contrast, cattails (b) grow primarily at the edges of lakes and streams, which can lead to clumped dispersion, while dwarf mistletoes (c) parasitize particular species of forest trees, which can lead to random dispersion. Lake trout (d) seeking out cold, deep water high in dissolved oxygen may also lead to clumped dispersion.
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The graph demonstrates the quantitative variation for skin pigmentation.
A bar graph has skin pigmentation color on the horizontal axis and Proportion of population on the vertical axis. From lightest to darkest skin colors, the proportions are: 1/64, 6/64, 15/64, 20/64, 15/64, 6/64, 1/64.
Which conclusion is supported by the graph?
More than half of the population has the central skin pigmentation.
The lightest and the darkest skin pigmentations are equally common in the population.
The central skin pigmentation makes up more of the population than the rest of the skin pigmentation groups combined.
Fewer people have skin pigmentation lighter than the central peak than people who have pigmentation darker than the central peak.
Answers
The graph demonstrates the quantitative variation for skin pigmentation and concludes that the lightest and the darkest skin pigmentations are equally common in the population.
Why are the lightest and darkest skin pigmentations equal ?Human skin can be any shade of brown, from the deepest to the palest. Variation in pigmentation, which is brought on by genetics (inherited from one's biological parents and/or specific gene alleles), exposure to the sun, natural and sexual selection, or any combination of these, is what gives people their different skin tones. Natural or sexual selection, social norms, varying environments, and laws governing the biochemical consequences of ultraviolet radiation penetrating the skin all contributed to population changes over time.Here, the ratios of lightest to darkest pigmentation is gives as 1/64 + 6/64 + 15/64 + 20/64 + 15/64 + 6/64 + 1/64 Therefore, we get 64/64 so hereby we can conclude that the lightest and the darkest skin pigmentations are equally common in the population.What is skin pigmentation?Your skin's color is referred to as skin pigmentation. It is determined by the quantity and kind of melanin, a pigment produced by specialized skin cells called melanocytes. Pigment disorders like hyperpigmentation (dark spots), hypopigmentation (light spots), and depigmentation can be brought on by changes in melanin production.Can learn more about skin pigmentation from https://brainly.com/question/23723742
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PLEASE HELP URGENT.!!!! 50 POINTS!!!
Drag each image to the correct location on the diagram.
An organism that has been observed in the Atacama Desert undergoes mutations in its genome. The trait caused by the mutation is beneficial to the species’ survival. Complete the model to show the process of natural selection during the third, fourth, and fifth generations.
Answers
PLEASE HELP 1 QUESTION
Answers
Answer:
Its the third one I believe
Explanation:
A population of beetles is currently 60 beetles at n=0. The beetle population has an intrinsic growth rate of 150% each generation. The environment can sustain a maximum population of 130 beetles. Find the population of the next three generations, 'y_1' ' 'y_2' and 'y_3' of beetles
Answers
The population of beetles in the next three generations, considering the carrying capacity, is y1 = 130 beetles, y2 = 130 beetles, and y3 = 130 beetles.
The population of beetles can be calculated using the formula: y = y0 * (1 + r)^n, where y is the population at a given generation, y0 is the initial population, r is the intrinsic growth rate (expressed as a decimal), and n is the number of generations.
Given that the initial population (y0) is 60 beetles and the intrinsic growth rate (r) is 150% (or 1.5), we can calculate the population for the next three generations.
For the first generation (y1), we substitute y0 = 60, r = 1.5, and n = 1 into the formula: y1 = 60 * (1 + 1.5)^1 = 60 * 2.5 = 150 beetles.
For the second generation (y2), we substitute y0 = 60, r = 1.5, and n = 2 into the formula: y2 = 60 * (1 + 1.5)^2 = 60 * 6.25 = 375 beetles.
For the third generation (y3), we substitute y0 = 60, r = 1.5, and n = 3 into the formula: y3 = 60 * (1 + 1.5)^3 = 60 * 15.625 = 937.5 beetles.
However, since the environment can only sustain a maximum population of 130 beetles, we need to consider the carrying capacity.
To find the population at each generation while considering the carrying capacity, we compare the calculated population with the carrying capacity and use the smaller value as the population.
For y1, the population is 150 beetles, which exceeds the carrying capacity of 130 beetles. Therefore, y1 = 130 beetles.
For y2, the calculated population is 375 beetles, which is also above the carrying capacity. Thus, y2 = 130 beetles.
For y3, the calculated population is 937.5 beetles, which is still above the carrying capacity. Therefore, y3 = 130 beetles.
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How does cohesion and adhesion allow water to move up a plant?
Answers
Cohesion and adhesion are two properties of water that allow it to move up a plant. Cohesion is the ability of water molecules to stick together, creating a surface tension that allows water to move in a cohesive column.
Adhesion is the ability of water molecules to cling to other surfaces, such as the walls of a tube or the side of a plant stem. This allows water to move along the stem, rising against the force of gravity.The combination of these two properties creates a process known as capillary action, cohesive force which is the ability of water to move up a plant stem due to surface tension. This process is driven by the attraction between water molecules and the walls of the tube. As the water molecules move up the tube, they pull more water molecules up behind them, creating a continuous column of water that rises up the stem. Capillary action is the primary mechanism that allows plants to absorb water from the soil and transport it up to the leaves and other parts of the plant.
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which organizational level of the ecosystem does a pack of wolves represent?
Answers
A pack of wolves represents a population-level organization within an ecosystem. A population is a group of organisms of the same species that live in the same geographic area and interact with each other.
In this case, the wolves in the pack are all members of the same species, and they live in a particular area, such as a forest or a tundra.
The population of wolves interacts with other populations in the ecosystem, such as their prey (such as elk, deer, or bison), other predators (such as bears or coyotes), and other organisms (such as birds, plants, and insects). These interactions influence the wolves' behavior, feeding habits, and reproduction, and in turn, the wolves can have an impact on the populations of other organisms in the ecosystem.
The pack of wolves represents a cohesive unit that works together to hunt, raise young, and defend their territory. The pack structure is an important aspect of wolf ecology, as it allows the wolves to better coordinate their efforts and increase their chances of survival.
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2. What happens in
terms of energy
when you hold a
craft stick and bend
it slightly?
Answers
Answer:
In a similar way a wooden tongue-depressor stick (like the kind used at the doctor's office) stores elastic potential energy when you bend it (though not if you break it). ... The elastic potential energy that was stored in the stick is transformed into movement, called kinetic energy.
Explanation:
what would happen if you stand on a white dwarf star
Answers
Answer:
you wouldn't live
Explanation:
it's way to hot to stand on a scarf star
1. During which phase of mitosis are chromatids separated?
A. metaphase
B. anaphase
C. telophase
D. prophase
Answers
Hope it helps
Answer:
B, Anaphase is the right answer
Explanation:
Metaphase leads to anaphase, during which each chromosome's sister chromatids separate and move to opposite poles of the cell. Enzymatic breakdown of cohesin — which linked the sister chromatids together during prophase — causes this separation to occur.
If you mix substance x and substance y to form Substance z Substance is an example of what?
Help help I’m taking a test and need answers please
Answers
Answer:
X is a compound because elements react to form compounds.
Difference between elements and compounds are:
1. Element consists of one kind of atoms whereas compounds consists of one kind of molecule made up of two or more types of atoms.
2. Element cannot be broken into simpler substances but compounds can be broken into simpler substances.Explanation:
What is the Organization of life from broad and specific groupings?
Answers
The organization of life from broad to specific groups is the following:
Biosphere
Ecosystem
Community
Population
Organism
Organ Systems
Organ
Tissue
Cells
Organelles
Molecules
Atoms
Or, the second answer choice.
How are gene mutations different from chromosomal mutations?
Answers
Answer:
Many different chromosome abnormalities have been identified, some of which are associated with genetic disorders and diseases like cancer. Gene mutations are permanent changes in DNA gene sequence. They can arise during normal DNA replication or in response to environmental factors.
Explanation:
hope this helps
a heart ________ is an indication of disturbed blood flow due to a damaged heart valve.
Answers
The statement "a heart murmur is an indication of disturbed blood flow due to a damaged heart valve" is correct.
What is a Heart Murmur?A heart murmur is an abnormal noise that can be heard through a stethoscope over the heart's region. The heart murmur is caused by blood flowing through the heart and its valves, making an additional noise. These noises can be heard by a doctor when they listen to your heart, and they can assist to diagnose potential health issues.The sound can be gentle or loud, and it can take a variety of sounds. In children, heart murmurs are more common than in adults. In the vast majority of instances, heart murmurs are not dangerous and do not require medical treatment.Heart Valve:Heart valves are tissues that work together to keep blood flowing through the heart. The heart has four chambers, each with its own set of valves. The heart valves' responsibility is to control the blood's flow through the heart chambers. When the heart contracts and relaxes, the valves open and close, ensuring that blood flows in only one direction through the heart.#SPJ11
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Although Arroyo does not mention the term "watershed", it is discussed in the unit as being closely related to and impacted by drought and floods. Please discuss how the watershed relates to drought and heat. How might Arroyo have integrated the term watershed into her talk?
Marine science
Answers
Although Arroyo does not mention the term "watershed", it is discussed in the unit as being closely related to and impacted by drought and floods. The watershed relates to drought and heat through the water cycle that is upon heating the water rises in the atmosphere in the form of water vapors and upon cooling condenses in the form of rainfall and comes down but during drought low water level in water bodies affect the water flow and quality of water.
Arroyo might have integrated the term watershed by saying that the Rockefeller Foundation is assisting farmers in constructing hillside decks to preserve water and they will also provide insurance when droughts occur.
A watershed is a region of land that frees water into a specific waterbody. Watersheds direct rainfall into creeks and rivers. These shorter bodies of water course into larger ones, such as lakes and oceans.
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health problems associated with shallow groundwater within 20 years ago
Answers
Answer: drying up of wells.
reduction of water in streams and lakes.
deterioration of water quality.
increased pumping costs.
land subsidence.
Explanation:
Explain how to distinguish different species by their DNA.
Answers
DNA analysis can be used to distinguish different species by comparing specific regions of their DNA sequences.
To distinguish different species by their DNA, scientists primarily focus on comparing specific regions of the DNA sequences that are highly variable among species. One commonly used region is the mitochondrial DNA (mtDNA), which is inherited maternally and has a higher mutation rate compared to nuclear DNA. Another region is the ribosomal RNA genes (rRNA), which exhibit variations among species.
The process typically involves extracting DNA samples from different organisms, isolating the target region of interest, and sequencing the DNA to determine the nucleotide sequence. The sequences obtained from different species are then compared to identify differences and similarities.
These differences can be used to create DNA profiles or genetic markers specific to each species. Advanced techniques such as DNA barcoding or whole-genome sequencing can provide more comprehensive information and aid in species identification.
By comparing DNA sequences, scientists can uncover genetic variations unique to different species, allowing them to distinguish and classify organisms accurately. This information is valuable in various fields, including taxonomy, conservation biology, forensic science, and evolutionary research.
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