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
From memory, list the characteristics of life.
iris [78.8K]
From memory (lol)

anyways, they are seven characteristics of life:
<span>1 Nutrition.
2 Respiration
3 Movement
4 Excretion
5 Growth
6 Reproduction
<span>7 Sensitivity.</span></span><span>




</span>
5 0
3 years ago
Read 2 more answers
A young child suffers a debilitating condition that includes progressive degeneration of the motor axons that innervate the mass
stiv31 [10]

Answer:

The correct answer is option B. "Tensor veli palatini".

Explanation:

Masseter muscle plays an important role in chewing solid foods while the tensor veli palatini acts elevating the palate and preventing that food goes into the nasopharynx. A progressive degeneration of the motor axons that innervate the masseter muscle will likely produce a similar effect in the tensor veli palatini muscle. Not only both muscles have functions during chewing of food, but also both muscles are controlled by similar motor axons.

3 0
3 years ago
Name the three major internal parts of the plant stem and identify their functions
Nat2105 [25]

Answer:

The three major internal parts of a stem are the xylem, phloem, and cambium. The xylem and phloem, as mentioned before, are the major components of a plant's vascular system. The cambium is a meristematic tissue, which means that it is a site of cell division and active cell growth.

Explanation:

6 0
3 years ago
Which element of an original work can be changed in an adaptation? Theme. Story. Setting. Main idea.
kompoz [17]

Answer: setting

Explanation:

7 0
3 years ago
Damage to neurons directly interferes with which of the following processes?
Vladimir79 [104]
Damage neurons will impair the transmission of nerve impulses.
C. is the answer
7 0
3 years ago
Other questions:
  • What field of work has been most impacted as dna technology has improved?
    12·1 answer
  • Is this statement true or false? A spider is an arthropod. Like the other animals in the phylum, it has jointed legs, a segmente
    10·2 answers
  • ___________ is a primary mechanism of homeostasis, whereby a change in a physiological variable that is being monitored triggers
    7·1 answer
  • Which scientists played a role in developing the cell theory?
    14·2 answers
  • How many molecules of carbon dioxide (CO2) would be produced by five turns of the citric acid cycle?
    7·1 answer
  • GAANO AKO KAGANDA BASE ON YOUR BATTERY PERCENTAGE​
    9·2 answers
  • Which of the following is NOT one of the key characteristics of a well-designed test?
    5·1 answer
  • Help is needed for this question plz
    5·2 answers
  • Peptide bonds are formed between two amino acids to form proteins. What type of reaction best describes this process?
    11·1 answer
  • What is the name of the project that had the goal of sequencing all of the bases that make up human DNA?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!