How males inherit hemophilia?

Answer 1

Hemophilia is passed down from mother to son. It is extremely

rare for a woman to have hemophilia. It is necessary, though, for

a woman to be a carrier of the disorder for her son to acquire this

disorder. Females have two X chromosomes whereas males only

have one. When a boy is born, he takes one X chromosome from

his mother and one Y chromosome from his father. Therefore, he

can only get hemophilia through his mother.

Example One:

Mother(Carrier)+Father(Non-Affected)=50% chance of their son

acquiring the disorder and 50% chance of their daughter being a

carrier.

Example Two:

Mother(Non-Affected)+Father(Hemophiliac)=All sons will be

non-affected and all daughters will be carriers.

Answer 2

Males get hemophilia from a carrier trait from their mother. Males can not get hemophilia from father. If father has hemophilia then sons do not have it and daughters are carriers. If mom is a carrier then 50-50 chance for sons to have it and 50-50 for daughters to be carriers. Males either have it or not they are not carriers. Females are carriers.

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Because this question specifies inheriting hemophilia, the above answer is mostly true. It is important to note that approximately 1/3 of the cases of hemophilia are believed to be the result of a random mutation and not inherited at all. Since the genetic sequences that code for hemophilia A & B are on the X chromosome the genetic transfer from parent to child controls the passage of these sequences.

A father provides his Y chromosome to his sons and his X chromosomes to his daughters. For this reason, only the daughter can inherit the trait from the father. The mother provides both sons and daughters with an X chromosome. This means that either son, or daughter, could inherit the trait from the mother.

I would like to point out that the term carrier is a highly debated subject, as many females also have clotting factor levels low enough to require treatment and be considered fully as hemophiliacs themselves.

Answer 3

Males with hemophilia definitely "carry" hemophilia. The tricky part is that a males will pass the mutation on to their daughters and will not pass the mutation on to their sons. Female carriers on the other hand have a 50% chance of passing the mutation on regardless if it's passed to a son or daughter.

Answer 4

Males are more apt to demonstrate hemophilia simply because the trait is located on the X chromosome. Females (which one can remember from science class) have two X chromosomes and no Y chromosomes. Males on the other hand have one X chromosome and one Y chromosome.

Each chromosome is like a set of instructions. When the body is making clotting factor proteins it reads the recipe exactly as instructed. If the recipe on one of the X chromosomes in a female is smudged or otherwise illegible (has the mutation) then the body can simply refer to the other X chromosome and get the correct information.

Since the male only has one X chromosome, they only have one set of instructions. If those instructions are illegible then there is no chance the factor protein will be made correctly.

Answer 5

Males.