Q.

Henking (1891) could trace a “specific nuclear structure” in a few insects. With respect to the ‘structure’, choose the appropriate statement

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a

He noticed that 50% ova do not receive it during oogenesis

b

He explained its significance in sex determination

c

The same pattern of appearance of it is seen male grasshoppers

d

It was termed later ‘Y’ chromosome

answer is C.

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Detailed Solution

Henking named the structure as ‘X’ body; He didn’t explain the significance of it in sex determination; He had noticed the presence of this specific structure in 50% of the sperms during spermatogenesis.

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