The nucleus is separated from surrounding cytoplasm by a nuclear envelope which is

Single and porous

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Double and porous

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Single and non-porous

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Double and non-porous

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Solution

The correct option is D Double and porous
A nuclear membrane, also known as the nuclear envelope, is a double lipid bilayer membrane, which surrounds the nucleus containing genetic material and nucleolus in eukaryotic cells. The nuclear membrane consists of two lipid bilayers- the inner nuclear membrane and the outer nuclear membrane and consists pores called as nuclear pores for the transportation of DNA, RNA and proteins. Thus, the correct answer is option B.

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