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The composition AA: XXX will give a viable female in Drosophila.(a) True(b) FalseThe question was posed to me during an online exam.Enquiry is from Sex Determination in Drosophila in portion Chromosomes and Sex Determination of Cytogenetics

Answer» CORRECT choice is (B) False

The explanation: Here the ratio of X: A is >1, so it should have been a female. But in Drosophila there is no DOSAGE compensation for the EXTRA X CHROMOSOME, thus the fl with this genetic combination is not viable.


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