Question

a type of blindness, occurs in humans and is due to a dominant allele, A. Normal vision is due to the allele, a. Migraine headaches are due to the dominant allele, M. Normal headaches are due to the allele, m. A man with normal vision and without migraines marries a woman with normal vision and migraines. The man;s father had aniridia. The women's father had normal headaches but never a migraine What was the genetics of the man's father for aniridia

Answer 1

The man's father genetics for aniridia is XAY because one copy of the altered gene in each cell is sufficient to cause this disorder.

Step-by-step explanation:

The aniridia allele in females has to be in the XAXA or XAXa form to be expressed but in males, can be expressed when genotype is XAY.

Migraine headaches allele in females has to be in the XMXM or XMXm form to be expressed but in males, can be expressed when genotype is XMY.

A man with normal vision and without migraines (XaY/XmY) had a father who had aniridia (XAY).

The man's father genetics for aniridia is XAY because one copy of the altered gene in each cell is sufficient to cause this disorder.