In Drosophila the XXY condition leads to femaleness whereas in human beings the same condition leads to Klinefelterss syndrome in male. It proves

Question

In Drosophila the XXY condition leads to femaleness whereas in human beings the same condition leads to Klinefelterss syndrome in male. It proves (A) in human being Y-chromosome is active in sex determination (B) Y-chromosome is active in sex determination in both human beings and Drosophila (C) in Drosophila Y-chromosome decides femaleness (D) Y-chromosome of man have genes for syndrome

Tardigrade Admin · Accepted Answer

In Drosophila XXY leads to femaleness. Because Y-chromosomes has no contribution in 4 femaleness. Sex in Drosophila is determined by sex chromosome-X and autosome A. While in human XXY condition will lead to genetically male with under developed testes and a zoospermia. It is 4 caused by the union of a non-disjunction XX egg and normal X egg and abnormal XY sperm. It indicates that in human being Y-chromosome is a active in sex determination.

Q. In Drosophila the XXY condition leads to femaleness whereas in human beings the same condition leads to Klinefelterss syndrome in male. It proves

in human being Y-chromosome is active in sex determination

Y-chromosome is active in sex determination in both human beings and Drosophila

in Drosophila Y-chromosome decides femaleness

Y-chromosome of man have genes for syndrome