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pav-90 [236]
3 years ago
13

Hemophilia is a hereditary bleeding disorder that primarily affects males. Why does this condition typically affect males more t

han females?
Biology
2 answers:
Ymorist [56]3 years ago
6 0

Answer:

See the answer below

Explanation:

<em>Hemophilia typically affects more males than females because the disorder is </em><em>X-linked </em><em>and </em><em>recessive</em><em>. </em>

<u>Females have two X chromosomes (XX) while males only have one X and one Y chromosome (XY). The two X chromosomes in females are capable of carrying alleles while the Y chromosome in males is hypothesized not able to carry alleles. </u>

Consequently, the two X chromosomes in females will both need to carry the recessive allele of hemophilia in order for any female to be affected for hemophilia while the males only need their single X chromosome to carry the recessive allele in order to be affected.

In order words, the presence of a single recessive allele is not enough for a female to be affected while it is more than enough for a male to be affected. Hence, more males are affected b hemophilia disorder than females.

lara [203]3 years ago
6 0

Answer:

klnagvhrfj okay?

Explanation:

yes

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Which of the following is a biotic factor in an ecosystem?
maria [59]

Answer:

tree leaves

Explanation:

6 0
2 years ago
The following are the recombination frequencies for a set of genes found on the same chromosome: X-W 7% W-Y 10% X-Z 13% W-Z 20%
Vladimir [108]

Options have not been provided for the question. They are as follows:

What is the correct order for these genes using a linkage map analysis?  

A. Z-X-Y-W

B. X-W-Z-Y

C. W-X-Y-Z

D. Y-W-Z-X

E. Z-X-W-Y

F. Y-X-W-Z

Between which two genes is crossing over most likely to occur?

A. B and D

B.X and Z

C. X and W

D. X and Y

E. W and Z

F. Y and W

G.Y and Z

Answer:

Correct order for these genes using a linkage map analysis: E. Z-X-W-Y

Two genes between which the crossover is most likely to occur: G.Y and Z

Explanation:

According to linkage concept, recombination frequency between two genes = distance between two genes in cM

Here, smallest distance is between X and W ( 7cM ) so they are present next to each other. Distance between X and Y is 17cM and between W and Y is 10cM so W is present between X and Y. Distance between X and Z is 13 cM. Since on one side of X, W and Y are already present Z lies on the other side. So, the final gene order comes out to be, Z-X-W-Y.

According to the gene order, Y and Z genes are farthest from each other. Chances of crossover or recombination increases with increasing distance between genes. So, Y and Z have the highest probability to show crossing over.

5 0
3 years ago
An example of a teratogenic cause of physical or health disabilities is
vodomira [7]
<span>Chromosomal and genetic causes:
Muscular dystrophy, sickle cell anemia, hemophilia, cystic fibrosis
CHARGE Association (syndrome) and Usher syndrome are the two examples of genetic causes of deaf-blindness
-Teratogenic causes:
TORCH - toxoplasmosis, other, rubella, cytomegalovirus, and herpes.
-Prematurity and pregnancy complications:
Neurological conditions, cerebral palsy -(tongue and mouth cant move to articulate), vision or hearing loss, intellectual disability
-Acquired causes:
Traumatic brain injury (TBI), child abuse, environmental toxins</span><span>Topographical </span>
4 0
3 years ago
Given a biochemical pathway where substrate A is converted to product B which is converted to product C which is converted to pr
madam [21]

Answer:

Four

Explanation:

An enzyme is used in each stage;

From A to B

B to C

C to D and finally D to E

4 0
3 years ago
How do doctors detect abnormalities in patients with the help of an EKG?
Delvig [45]
The EKG will show up very unnormal and will change the pattern.
5 0
3 years ago
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