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The Fundamental Unit of Life — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceThe Fundamental Unit of Life2 Marks
Question
Why does viruses form an exception to cell theory?
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Answer

Virus do not have nucleus and protoplasm hence they do not show characteristics of life until and unless they enter into a living organism and use their cell machinery to multiply. That’s why they are exception to cell theory.

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