1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
hammer [34]
3 years ago
7

A survey reveals that 25 percent of a population of 1,000 individuals have attached earlobes (are homozygous recessive for the t

rait). For the following questions, assume that the population fits the parameters of the Hardy-Weinburg law.
If p equals the frequency of the dominant allele and q equals the frequency of the recessive allele, which of the following terms represents the frequency of the individuals who show the dominant phenotype?
a. pxp
b. qxq
c. 2pq
d. pxp +2pq
e. pxp + qxq
Biology
1 answer:
Mumz [18]3 years ago
4 0

Answer:

d. pxp +2pq

Explanation:

The formula for genotype frequency for a population in Hardy-Weinburg equilibrium is as under:

                           p² + 2pq + q² = 1

where, p = dominant allele

           q = recessive allele

Here,

 p² represents frequency of homozygous dominant genotype

2pq represents frequency of heterozygous genotype

q² represents frequency of homozygous recessive genotype

Also, although the genotypes p² & 2pq are different from each other yet phenotypically they both will collectively produce dominant trait i.e. free ear lobes not attached earlobes. So the term "p² + 2pq or pxp + 2pq" represents the frequency of the individuals who show the dominant phenotype in this particular population. Dominant phenotype will comprise 75% of the population.

You might be interested in
THE RIGHT ANSWER WILL RECIEVE A BRAINLEST AND POINTS AND THANXS!!!
Flauer [41]
Chymotrypsin
pepsin
and trypsin
hope u found this useful
6 0
3 years ago
Read 2 more answers
A nonsense mutation has occurred, resulting in a truncated, nonfunctional product in the mutant. In a eukaryotic cell, a gene th
Ymorist [56]

Answer:

Removal of introns

Explanation:

the reduction in the sequence is as a result of the removal of introns. Introns are actually non-coding regions and do not code for proteins. they are usually spliced out.

7 0
3 years ago
I WILL MARK BRAINLIEST PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Murljashka [212]

Answer:

T-protease would be active in the stomach and W-protease would be active in the intestines.

Explanation:

Acidic pH's are considered to be less than 7 and 7 is considered neutral. Due to this we know that T-protease is more active in more acidic pH's meaning it would be most active in the acidic stomach.

8 0
3 years ago
Are Radar waves used to re-heat and cook food?
My name is Ann [436]

Answer:

I think it would be yes

Explanation:

Microwaves and infrared waves can heat up food but does not make food radioactive. The waves cause vigorous vibration of molecules in food resulting in high temperature that cooks the food.hope this helps if not let me know.

6 0
2 years ago
Cite particularly the difference in the synthesis of the two biomolecules in animals and plants.
Sonja [21]

Answer:

The preceding section reviewed the major metabolic reactions by which the cell obtains and stores energy in the form of ATP. This metabolic energy is then used to accomplish various tasks, including the synthesis of macromolecules and other cell constituents. Thus, energy derived from the breakdown of organic molecules (catabolism) is used to drive the synthesis of other required components of the cell. Most catabolic pathways involve the oxidation of organic molecules coupled to the generation of both energy (ATP) and reducing power (NADH). In contrast, biosynthetic (anabolic) pathways generally involve the use of both ATP and reducing power (usually in the form of NADPH) for the production of new organic compounds. One major biosynthetic pathway, the synthesis of carbohydrates from CO2 and H2O during the dark reactions of photosynthesis, was discussed in the preceding section. Additional pathways leading to the biosynthesis of major cellular constituents (carbohydrates, lipids, proteins, and nucleic acids) are reviewed in the sections that follow.

Go to:

Carbohydrates

In addition to being obtained directly from food or generated by photosynthesis, glucose can be synthesized from other organic molecules. In animal cells, glucose synthesis (gluconeogenesis) usually starts with lactate (produced by anaerobic glycolysis), amino acids (derived from the breakdown of proteins), or glycerol (produced by the breakdown of lipids). Plants (but not animals) are also able to synthesize glucose from fatty acids—a process that is particularly important during the germination of seeds, when energy stored as fats must be converted to carbohydrates to support growth of the plant. In both animal and plant cells, simple sugars are polymerized and stored as polysaccharides.

Gluconeogenesis involves the conversion of pyruvate to glucose—essentially the reverse of glycolysis. However, as discussed earlier, the glycolytic conversion of glucose to pyruvate is an energy-yielding pathway, generating two molecules each of ATP and NADH. Although some reactions of glycolysis are readily reversible, others will proceed only in the direction of glucose breakdown, because they are associated with a large decrease in free energy. These energetically favorable reactions of glycolysis are bypassed during gluconeogenesis by other reactions (catalyzed by different enzymes) that are coupled to the expenditure of ATP and NADH in order to drive them in the direction of glucose synthesis. Overall, the generation of glucose from two molecules of pyruvate requires four molecules of ATP, two of GTP, and two of NADH. This process is considerably more costly than the simple reversal of glycolysis (which would require two molecules of ATP and two of NADH), illustrating the additional energy required to drive the pathway in the direction of biosynthesis.

4 0
2 years ago
Other questions:
  • The structures of the endocrine system are crucial to performing functions that are essential in life processes. What is the maj
    10·1 answer
  • What's the difference between a monomer and a polymer? ​
    8·1 answer
  • One of the negative aspects of using nuclear power as an alternative energy source is
    6·2 answers
  • Which of the following accurately describes a typical human karyotype? A. A karyotype only displays sex chromosomes. B. 1 pair o
    14·1 answer
  • During photosynthesis, ___________ energy is converted into ____________ energy.
    15·1 answer
  • A researcher is trying to construct a molecular-based phylogeny of the entire animal kingdom. Assuming that none of the followin
    10·1 answer
  • The fossil presence of anatomically modern humans in ________ demonstrates that our ancestors were capable of substantial water
    15·1 answer
  • When Substance Y is applied the cell, the cell functions normally at first, but as time goes on, action potential amplitude grad
    8·1 answer
  • WILL MARK BRAINILEST HH= hair, hh= no hair. What is the probability of kid if: A male who is HH loves with a female who is h o m
    9·1 answer
  • What a b0nerr mean???????
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!