Which observation would not support the hypothesis that the gene controlling maleness is located on the Y chromosome?
A) XO individuals are usually sterile females, with slight physical abnormalities.
B) XXY individuals are sterile males with long limbs.
C) XXX individuals are normal males.
D) Some men are XX but have a small piece of the Y attached to another chromosome.
E) XYY individuals are males.

Question

Which observation would not support the hypothesis that the gene controlling maleness is located on the Y chromosome?
A) XO individuals are usually sterile females, with slight physical abnormalities.
B) XXY individuals are sterile males with long limbs.
C) XXX individuals are normal males.
D) Some men are XX but have a small piece of the Y attached to another chromosome.
E) XYY individuals are males.

Quizplus · Accepted Answer

This observation contradicts the hypothesis that the gene controlling maleness is located on the Y chromosome since the individual has three X chromosomes but is still a male, indicating that maleness is not solely determined by the presence or absence of a Y chromosome.

Which Observation Would Not Support the Hypothesis That the Gene