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Although a prokaryotic cell has no defined nucleus, yet DNA is not scattered throughout the cell. Explain.

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Question

Although a prokaryotic cell has no defined nucleus, yet DNA is not scattered throughout the cell. Explain.

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Solution

In prokaryotes like E. coli, the DNA is not scattered throughout the cell despite the absence of a defined nucleus. Because DNA is negatively charged, it is held by certain positively charged proteins within a specific region called the ‘nucleoid’. In this nucleoid region, the DNA is organised into large loops that are stabilised by these proteins.
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Chapter 5: Molecular Basis of Inheritance - HIGHER ORDER THINKING SKILLS QUESTIONS (HOTS) [Page 276]

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Nootan Biology [English] Class 12 ISC
Chapter 5 Molecular Basis of Inheritance
HIGHER ORDER THINKING SKILLS QUESTIONS (HOTS) | Q 12. | Page 276

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