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Which of the following will give a normal female Drosophila?(a) AAA + XX(b) AA + XXY(c) AA + XY(d) AA + XXXThe question was asked in a job interview.This interesting question is from Sex Determination in Drosophila in chapter Chromosomes and Sex Determination of Cytogenetics

Answer»

The correct answer is (B) AA + XXY

Best explanation: In the following case the X: A ratio is 1 which is REQUIRED for DEVELOPING female CHARACTERS. In all the other cases viable female is not produced.



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