Nuclear material without nuclear envelope occurs in

Mycoplasma and Green Algae

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Bacteria and Green Algae

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Bacteria and Cyanobacteria

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Cyanobacteria and Red Algae

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Solution

The correct option is C Bacteria and Cyanobacteria
Bacteria and Cyanobacteria are unicellular organisms. They are prokaryotes. They lack membrane-bound organelles. They do not have a well-defined nucleus. The nuclear material is present without a nuclear envelope. It is called the nucleoid. Nucleoid is a circular single-stranded DNA material.
Thus, the correct answer is 'Bacteria and Cyanobacteria.'

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Question 22
Which of the following statements are true for eukaryotic cells?

(i) They do not have a nuclear membrane.
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(a) ii and iv
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