Sex determination in mammals is due to the SRY region of the Y chromosome. An abnormality could allow which of the following to have a male phenotype?
A)Turner syndrome, 45, X
B)Translocation of SRY to an autosome of a 46, XX individual
C)A person with too many X chromosomes
D)A person with one normal and one shortened (deleted)X
E)Down syndrome, 46, XX

Question

Quizplus · Accepted Answer

The presence of the SRY region on an autosome can cause a female individual with two X chromosomes (46, XX) to develop male traits. This is known as XX male syndrome. The other conditions listed (Turner syndrome, too many X chromosomes, shortened X, and Down syndrome) would not lead to a male phenotype.

Sex Determination in Mammals Is Due to the SRY Region