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Fertilisation in Humans

In humans, fe...

Question

In humans, females have _ sex chromosomes and males have _ sex chromosomes.

A

XX and XY

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B

XY and XX

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C

ZW and ZZ

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D

AA and AB

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Solution

The correct option is A XX and XY
Human males have 44 + XY chromosome and females have 44 + XX chromosomes in their nucleus. XX/XY are called as sex chromosomes as they decide the sex of the offspring. Other chromosomes are called autosomes and they decide the bodily characteristics.

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