-The Punnett square illustration above shows that theoretically
A) half of human sperm carry a Y chromosome.
B) half of human zygotes are XY.
C) all zygotes carry an X chromosome.
D) gender depends upon which type of sperm fertilizes the egg.
E) all of these are true.

Question

-The Punnett square illustration above shows that theoretically
A) half of human sperm carry a Y chromosome. 
B) half of human zygotes are XY. 
C) all zygotes carry an X chromosome. 
D) gender depends upon which type of sperm fertilizes the egg. 
E) all of these are true.

Quizplus · Accepted Answer

The Punnett square shows that half of the sperm carry a Y chromosome, half of the zygotes are XY, all zygotes carry an X chromosome, and gender is determined by whether an X or Y sperm fertilizes the egg.

-The Punnett Square Illustration Above Shows That Theoretically