Multiple choice

Drosophila flies with XXY genotype are females, but human beings with such genotype are abnormal males. It shows that

  1. Y-chromosome is essential for sex determination in Drosophila

  2. Y-chromosome is female determinator in Drosophila

  3. Y-chromosome is male determinator in human beings

  4. Y-chromosome has no role in sex determination either in Drosophila or in human beings

  5. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In human beings, the presence of a Y-chromosome is required for the development of a male sex phenotype. In human beings, the presence of a Y-chromosome is required for the development of a male sex phenotype.

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