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How do Organisms Reproduce? — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceHow do Organisms Reproduce?2 Marks
Question
State one genetically different feature between sperms and eggs of humans. What is its consequence?
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Answer

In humans, sperms have XY sex chromosomes while females have XX. The consequence of this is that sperm play a role in deciding the sex of child. As females are XX they can only contribute X but sperms are XY so they can either contribute X or Y to the offspring. If sperm contributes X then the offspring will be female and if contributes Y then the offspring would be a male.

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