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.
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