Question:
A typical nucleosome contains how many base pairs of DNA helix?
A typical nucleosome contains how many base pairs of DNA helix?
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Nucleosomes consist of 200 base pairs of DNA wrapped around histones, forming the basic structural unit of chromatin.
Updated On: Sep 3, 2025
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Solution and Explanation
Step 1: Understanding nucleosomes.
A nucleosome is a structural unit of chromatin in eukaryotic cells. It consists of a segment of DNA wrapped around histone proteins.
Step 2: DNA wrapping in nucleosomes.
Each nucleosome contains about 200 base pairs of DNA wrapped around histone proteins.
Step 3: Conclusion.
Thus, the correct answer is ((B) 200 base pairs.
Final Answer: \[ \boxed{200 \, \text{base pairs}} \]
A nucleosome is a structural unit of chromatin in eukaryotic cells. It consists of a segment of DNA wrapped around histone proteins.
Step 2: DNA wrapping in nucleosomes.
Each nucleosome contains about 200 base pairs of DNA wrapped around histone proteins.
Step 3: Conclusion.
Thus, the correct answer is ((B) 200 base pairs.
Final Answer: \[ \boxed{200 \, \text{base pairs}} \]
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