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Prokaryotic Cell

A well-define...

Question

A well-defined nucleus is absent in

A

Nostoc

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B

Paramoecium

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C

Slime moulds

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D

Yeast

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Solution

The correct option is A Nostoc
A well-defined nucleus is absent in prokaryotes. Prokaryotes have their genetic material in the form of naked circular DNA present in a region called the nucleoid.
Nostoc is a prokaryote and it lacks a well-defined nucleus.

Paramoecium, slime moulds and yeast are eukaryotes with a well-defined nucleus.

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Prokaryotic Cell

Standard XII Biology

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