The given illustration represents an animal cell.

Which labelled structure contains chromosomes and plays a central role in cellular reproduction?

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III

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Solution

The correct option is A
I

In the given illustration, label I represents nucleus. It contains chromosomes, which are visible only at the time of cell division. The chromosomes contain DNA and proteins. Since DNA contains genes, it plays an important role in the inheritance of characteristics from parents to offsprings. Nucleus controls all cellular functions and plays an important role in cell reproduction.

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