There is no DNA in

an enucleated ovum

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mature RBCs

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mature spermatozoan

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hair root

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Solution

The correct option is B mature RBCs
RBCs lose their nucleus and cell organelles such as mitochondria and ER on maturation. Hence they lack DNA.

An enucleated ovum is an ovum without nucleus and hence it would not contain genomic DNA but would still contain mitochondrial DNA.

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