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Why is it scientifically wrong to blame only the mother for the sex of a child?

Answer and explanation

Correct answer: The mother always gives X, while the father can give X or Y

The governing concept is the inheritance of sex chromosomes and the equal genetic contribution of the parents. A human egg normally carries X, while sperm cells are of two types: X-bearing or Y-bearing. The sperm that fertilises the egg therefore determines whether the zygote is XX or XY. Option A is correct. The mother does not provide Y, the father contributes a chromosome, and food does not determine chromosomal sex.

Related tags

Sex ChromosomesGender MisconceptionHeredityHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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