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What forms the backbone of a polynucleot...

What forms the backbone of a polynucleotide strand of a nucleic acid?

A

Adenine and guanine

B

Sugar-phosphate-sugar chain

C

Cytosine and thymine

D

All of these

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-BIOMOLECULES-ASSIGNMENT (SECTION-B)
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