An organism having cytoplasm, DNA and RNA but no cell wall is

Cyanobacteria

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Mycoplasma

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Bacterium

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Virus

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Solution

The correct option is A Mycoplasma
Mycoplasma is a genus of bacteria that completely lack a cell wall. Their outermost layer is made up of plasma membrane enclosing cytoplasm, DNA and RNA. Therefore, they don't have a definite shape. Cyanobacteria and bacterium have a cell wall. Virus has a protein coat instead of a cell wall.
Thus, the correct answer is option B.

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Which of the following organisms have cell membrane but never have cell wall?

Assertion: DNA passes its genetic information to RNA via transcription.

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