Which best describes the sex chromosomes in humans?
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A. Males have two X chromosomes.
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B. Females have one X and one Y chromosome.
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C. Males have two Y chromosomes.
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D. Males have two different chromosomes.

Option D )Males have two different chromosomes.

Explanation:

The human males have two different chromosomes known as the XY- chromosome. Hence, a human male child receives a Y chromosome from his father with XY, and a X chromosome from his mother with XX.

Females, on the other hand have similar chromosomes (XX-chromosome), each X received from each parent.

Thus, the XY-chromosome in human males make for two different chromosomes.

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