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  • Which of the following types of sex chromosomes represent...
Multiple choice

Which of the following types of sex chromosomes represent a male human being?

  1. YY

  2. XX

  3. XY

  4. XO

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Human males have XY sex chromosomes, while females have XX. The Y chromosome carries the SRY gene that triggers male development. YY is not viable in humans, XO causes Turner syndrome, and XX is the female karyotype.

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