alleryIn Drosophila melanogaster, a normal female and a normal male respectively carry which sex chromosome compositions?
AXX and XO
BZW and ZZ
CXO and XY
DXX and XY
Answer & Solution
Correct answer: D. XX and XY
Drosophila uses XY sex determination similar to mammals.
Females are XX and males are XY, although in Drosophila sex actually depends on the X:autosome ratio rather than the presence of Y.
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