Tuesday, March 14, 2023

Gonostome

The pair of chromosomes known as the gonostome determines sexual identity. Both males and females have X chromosomes, but only males have two X chromosomes and females have one X chromosome and one Y chromosome. Certain species of birds, insects, and fish use the Z and W designations for their sex chromosomes; males have two Z chromosomes, while females may have one Z and one W chromosome, or no Z chromosome at all.


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