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Biology

Assertion. The basic structural unit of DNA is nucleotide.

Reason. DNA is composed of repeating nucleosome which are made up of three components - pentose sugar, phosphate group and nitrogenous bases.

  1. Both A and R are True
  2. Both A and R are False
  3. A is True and R is False.
  4. A is False and R is True.

Chromosomes

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Answer

A is True and R is False.

Explanation
DNA is composed of repeating nucleosome which are made up of nucleotide and histone proteins. Nucleotide are composed of pentose sugar, phosphate group and nitrogenous bases.

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