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

Question

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

Drosophila flies with XXY genotype are females, but human beings with such genotype are abnormal males. It shows that
A. Y-chromosome is essential for sex determination in Drosophila
B. Y-chromosome is female determinating in Drosophila
C. Y-chromosome is male determining in human beings
D. Y-chromosome has no role in sex determination either in Drosophila or in human beings

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - C
In human beings, the presence of a Y-chromosome is required for the development of a male sex phenotype. X-chromosomes pesent in any number. (XXX, XXXX) in the absence of a Y-chromosome gives rise to female.
Presence of even a single Y-chromosome confers maleness. In Drosphila, Y-chromosome plays no significant role in sex determination. In Drosophila male determines were located on autosomes. One X and two autosomes produce male while two X(X, X) and two autosomes produce female.