Question

Polynucleotide chain of DNA contains
A) a nitrogenous base, deoxyribose sugar and phosphate group B) a nitrogenous base, ribose sugar and phosphate group C) deoxyribose sugar, ribose sugar and phosphate group D) a nitrogenous base and phosphate group only

Answer 1

Answer:

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Explanation:

A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits. Each of these chains is known as a DNA chain, or a DNA strand. Hydrogen bonds between the base portions of the nucleotides hold the two chains together

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Answer 2

Explanation:

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