Question
Biology Question on Sex Determination
Sex is determined in human beings
A
by ovum
B
at time of fertilization
C
40 days after fertilization
D
seventh to eight week when genitals differentiate in foetus.
Answer
at time of fertilization
Explanation
Solution
Sex is determined in human beings at the time of fertilization. Sex of human body is determined by the karyotype of the zygote or fertilized egg. Sex of the baby depends upon the sperm which fertilizes the ovum.