What Does the Nonrecombining Region of the Y Contain

Question

What does the nonrecombining region of the Y contain?
A)the genes that have homologues on the X chromosome
B)SRY
C)the centromere
D)A,B,and C
E)B and C

Accepted Answer

The nonrecombining region of the Y chromosome, also known as the MSY (male-specific region of the Y), contains genes that do not have homologues on the X chromosome, including the sex-determining gene SRY, as well as the centromere. Therefore, the correct answer is B and C. Option A is incorrect because genes that have homologues on the X chromosome are not found in the nonrecombining region of the Y chromosome.