Multiple choice

In man, the absence of a Y chromosome in a fertilized egg causes it to develop into

  1. Male

  2. Female

  3. Inter sex

  4. Dead chromosome
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In human genetics, the presence of the Y chromosome determines maleness via the SRY gene. In the absence of a Y chromosome (such as in an XX karyotype), the default embryonic development pathway leads to a female.

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