Question

What is the smallest unit if DNA molecule that can be altered by mutation and cause change in coding of polypeptides?

Answer 1

Answer:

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Answer 2

Answer:

Smallest unit of DNA is nucleotide .

Explanation:

nucleotide of DNA has three components:

1. 5 carbon deoxyribose sugar

2. Nirogenous base

3. Phophate

Nitrogenous base is attached to 1' end of sugar while phosphate is attached to 5' end. 3' end of the sugar can attach to next nucleotide.