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Question
The belief that the mother is completely responsible for the sex of the child is wrong because the child
Options
gets sex chromosome only from the mother
develops in the body of the mother
gets one sex chromosome from the mother and the other from the father
gets sex chromosome only from the father
Solution
gets one sex chromosome from the mother and the other from the father
Explanation -
The child gets one sex chromosome from the mother and one from the father. The mother has XX combination and always contributes an X-chromosome.
It is the sperm of father which determines the sex of the child. This is because half of the sperms have X-chromosomes and other half have Y-chromosomes.
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