a. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
b. Note that the male Y-chromosome does not have a normal clotting gene to dominate the recessive h gene on the X, so males cannot be just carriers. If they have one h gene, they will have hemophilia.
A recessive sex-linked allele (h) located on the X chromosome increases blood-clotting time, causing hemophilia.
a. With the aid of a Punnet square explain how hemophilic offspring can be born to normal parents?
My work: Hemophilic offspring could be born to normal parents through the allele being recessive in the parents. Could someone help me with the Punnet square as I couldn't upload it.
b. Can any of the female offspring develop hemophilia? Explain.
My work: Any of the female offspring could develop hemophilia because in order for a child to be female it has to have 2 X chromosomes which are provided by each parent giving one and there is the possibility that one of the parents has the recessive sex-linked allele that is related to hemophilia.
3 answers
So would the female offspring develop hemophilia?
no the female offspring would not. the female would inherit a normal gene from the father on his X chromosome and no matter if they inherited the dominant or recessive gene from the mother (H or h), they would only be able to be heterozygous to it and would therefore not have the condition.