In humans, females have_ chromosomes and males have__chromosomes.

XX and XY

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XY and XX

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ZW and ZZ

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AA and AB

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Solution

The correct option is A XX and XY
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females. Human males have 44 + XY chromosome and females have 44 + XX chromosomes in their nucleus.

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