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
n200080 [17]
3 years ago
12

Males have hemophilia when they are hemizy-gous for a nonfunctional recessive mutant allele of the X-Iinked gene for clotting fa

ctor Vlll. Factor Vlll is normally secreted into the blood serum by cells in the bone marrow that produce it. a. Do you think that females heterozygous for the hemophilia disease allele could have hemophilia in some parts of their bodies and not others? b. If such a female "carrier" of hemophilia suffered a cut, would her blood coagulate (form clots) faster, slower, or in about the same time as that of an individual homozygous for a normal allele of the factor Vlll gene? Would the rate of clotting vary significantly among heterozygous females?
Biology
1 answer:
ruslelena [56]3 years ago
8 0

Answer:

a. No, it is not possible.

A heterozygous female carries one copy of functional gene which is enough for the production of clotting factor. Hemophilia does not show continuous variation or polygenic inheritance and thus, its level does not depend on the number of normal alleles.

It that was the case, then all males would show hemophilia in some parts of the body as they only carry one X chromosome and thus, only one functional gene.

Thus, heterozygotes are only the carriers of the disease, they do not show any symptom of the disease.

b. In perspective of homozygosity or heterozygosity, the rate of blood clotting should be the same as both of them have functional gene. As mentioned above, it does not show continuous variation so, it will not show any increased or decreased rate of clotting in homozygotes or heterozygotes.

However, in reality, the rate of clotting depends on the concentration of clotting factor present in blood plasma. This percentage depends on the physiology of a person but not on the number of alleles present. For example, proteins or enzymes required for gene expression, et cetera.

You might be interested in
Selective breeding happens
eduard

Answer:

Selective breeding is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.

Explanation:

6 0
2 years ago
Jordon had surgery to repair her outer ear. What is the medical term for this surgery?
Mars2501 [29]
Ossiculoplasty is the term to repair the outer ear.
7 0
3 years ago
Read 2 more answers
Cellular products such as hormones and neurotransmitters are released by the process of __________.
Finger [1]
Cellular products such as hormones and neurotransmitters are released by the process of exocytosis. <span> Exocytosis is the term that describes the transport of material out of a cell.</span>During this process <span>vesicles fuse with the plasma membrane and release their contents to the outside of the cell.
</span><span>This process is the counterpart of endocytosis.</span>
8 0
3 years ago
The perception of color depends on the __________ of light an object reflects. A.function B.amplitude C.variation D.wavelength
k0ka [10]
The answer to this is B
3 0
3 years ago
Read 2 more answers
What ate the stages of meiosis of an animal cell
Gnesinka [82]

Answer:

Since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is not true about cells? 1)All living thing begins life as a single cell. 2)The cell is the basic unit of
    5·1 answer
  • A few years after a major oil spill, which area is most fragile in terms of biodiversity?
    8·1 answer
  • What feature of the fossil Pikaia led scientists to classify it as a chordate?
    10·1 answer
  • Cell_____is the process by which cells divide​
    11·1 answer
  • If a microscope has a 10X ocular and the total magnification at a particular time is 950X, the objective lens is use at that tim
    7·1 answer
  • In rabbits, black fur is dominant to white fur.
    13·1 answer
  • The ocean’s surface temperature varies with latitude and a. longitude. c. time of year. b. salinity. d. moon phases. Please sele
    9·2 answers
  • Euglena, amoeba, paramecium: all one-celled protists. How does the paramecium move through its environment?
    5·2 answers
  • Here is a country test!
    5·1 answer
  • Which of the following is a true statement about weather and climate maps?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!