Final answer:
In humans, males have XY chromosomes, determining their genetic sex.
Explanation:
Male humans have XY chromosomes, as the Y chromosome contains genes that cause male development. This results in males having one X chromosome inherited from their mother and one Y chromosome inherited from their father.
The presence of X and Y chromosomes determines the genetic sex of individuals, with XX representing females and XY representing males in humans. The SRY gene on the Y chromosome is responsible for the development of the male reproductive system.
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