During metabolic activation of oocyte,

large number of inactivated DNA strands in the cytoplasm gets activated.

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large number of inactivated mRNA strands in the cytoplasm gets activated.

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large number of inactivated mRNA strands in the nucleus gets activated.

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large number of inactivated DNA strands in the nucleus gets activated.

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Solution

The correct option is B large number of inactivated mRNA strands in the cytoplasm gets activated.
The cytoplasm of the oocyte contains a large number of inactivated mRNA strands. The mRNAs are kept in an inactivated state by special proteins. The metabolic activation of the oocyte involves activation of the enzymes that cause a rapid increase in the metabolic rate in the oocyte. This activates the mRNA strands which accelerates the protein synthesis rapidly.

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