Question

If a baby boy inherits a recessive allele from his mother, in which of the following circumstances would he most likely exhibit that recessive trait?

The allele is X-linked.
His mother’s father also exhibited the trait.
The allele skips a generation.
He inherited the dominant trait from his father.

Answer 1

A seems to be the most sensible answer maybe B but I think its A.

Answer 2

Answer:

Option A is correct.

The allele is X-linked.

Explanation:

As a boy inherited a recessive allele from his mother, as males inherit X from their mother and Y from father. So, it is for sure that the allele is X linked. So it is clear that the allele is X linked.