Question

In human zygote male sex is determined by

• A. Strength of father
• B. Nutrition of mother
• C. Composition of required chromosome pair
• D. None of the above

Answer 1

The correct option is C Composition of required chromosome pair

Men determine the sex of a baby depending on whether their sperm is carrying an X or Y chromosome. An X chromosome combines with the mother's X chromosome to make a baby girl (XX) and a Y chromosome will combine with the mother's to make a boy (XY).

'Strength of father' and 'Nutrition of mother' has no link in determining the gender of an offspring.

So, the correct answer is 'Composition of required chromosome pair'.