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Both Drosophila and mammals have XY system of sex determination. Dosage compensation y inactivation of one X chromosome is seen in ___________________(a) Mammals(b) Drosophila(c) Metaphase(d) TelophaseI got this question in an interview.I'd like to ask this question from Dosage Compensation Mechanism for X linked Genes topic in portion Chromosomes and Sex Determination of Cytogenetics

Answer»

Correct choice is (a) MAMMALS

Explanation: Only in case of mammals dosage compensation mechanism is by inactivation of one X CHROMOSOME. In DROSOPHILA there is a different mechanism.



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