Question 1

(Multiple Choice)

A human individual has a karyotype that is XY but is phenotypically female.An explanation for this could be


A) a deletion of the Sry gene on the Y chromosome, thus resulting in an female phenotype.
B) a translocation of the Sry gene to one of the X chromosomes has occurred, thus resulting in a female phenotype.
C) the Sry gene has been amplified 10 fold on the Y chromosome.
D) sex is determined by genes located on autosomes, not sex chromosomes.

Answer

A