Calico cats are female.The patches of fur color result from X inactivation, silencing fur color genes on one X chromosome or the other.However, extremely rarely, there can be a male calico.Describe the genetics necessary for a male calico cat.
A)XX with a translocation of the SRY gene onto one of the X chromosomes.
B)XY with a mutation in the SRY gene.
C)XX with a translocation of the testosterone gene onto one of the X chromosomes.
D)XY with a mutation in the estrogen gene.

Question

Quizplus · Accepted Answer

Male calico cats can occur if they have two X chromosomes (XXY), with one X carrying the SRY gene, which typically determines maleness.

Calico Cats Are Female