Q.

ZW-ZZ method of sex determination is seen in

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a

grasshoppers and cockroaches

b

butterflies and Fumea moths

c

reptiles and birds

d

fruitflies and humans

answer is B.

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Detailed Solution

In reptiles and birds, females have Z and W allosomes whereas their males have a pair of Z chromosomes.

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ZW-ZZ method of sex determination is seen in