How is gender determined?
A) Through environmental variables
B) By the presence or absence of certain chromosomes
C) By the mother's body temperature at the time of fertilization
D) By the timing of fertilization

Question

Quizplus · Accepted Answer

Gender is determined by the presence or absence of certain chromosomes. Generally, females have two X chromosomes (XX) and males have one X and one Y chromosome (XY). The sperm carries either an X or Y chromosome, and the resulting combination with the egg determines the gender of the offspring.

How Is Gender Determined