A) sex chromosome of mother
B) sex chromosome of father
C) size of ovum
D) size of sperm
Correct Answer: B
Solution :
Fixing the sex of an individual as it begins life is called sex determination. The chromosome theory of sex determination was worked out by EB Wilson and Stevens (1902-1905). Sex chromosomes carry genes for sex. X-chromosome carries female determining genes and Y-chromosome has male determining genes. The number of X and Y chromosomes determines the female or male sex of the individual. The sex chromosome of father determines the sex of offspring.
You need to login to perform this action.
You will be redirected in
3 sec
