Question

a woman has only for daughter but not son does it means that the men do not produce Y chromosome in sperm

Answer 1

Heyy mate ❤✌✌❤

Here's your Answer...

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No, It doesn't mean that sperm will carry Y chromosomes.

It depend on the sperm what it carries. If it's X then , the child will be girl and if Y the child will be boy.
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Answer 2

Answer

It doesn't mean that the sperm is not carrying the y choromosome as during fertilization only sperm is able to fuse the ovum and in this case it was x chromosome that is why a girl child is born.