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Question

A Typical Nucleosome contains ______.


A

100bp Of DNA Helix

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B

200bp Of DNA Helix

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C

300bp Of DNA Helix

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D

400bp Of DNA Helix.

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Solution

The correct option is B

200bp Of DNA Helix


The correct option is B.

Explanation of the correct option:

  1. A nucleosome is a structure generated when the histone protein is encircled by DNA.
  2. The DNA molecule is also composed of units called nucleotides, and each nucleotide is composed of 3 different components such as sugar, phosphate groups, and nitrogen bases.
  3. Histones serve as the pools for DNA which spirals creating structural units referred to as nucleosomes, appearing as beads on strings.
  4. It has a DNA helix wrapped around a histone octamer with about 200 base pairs (species-specific variations).

Final Answer: A Typical Nucleosome Contains 200bp of DNA Helix.


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