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Eye colour in fruitfly is a sex-linked t...

Eye colour in fruitfly is a sex-linked trait and the cross between white-eyed female and red-eyed male gives red-eyed females and white-eyed males. Rarely, this cross may give all white-eyed Females and red-eyed males, this was found to be due to

A

loss of sex chromosome

B

Non-disjunction of two Z-chromosomes in female fly

C

Mutation in femle fly

D

Mutation in male fly

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The correct Answer is:
B
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