How many polynucleotide chains is a deoxyribo | vedclass

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(B) $DNA$ $(Deoxyribonucleic 	ext{ acid})$ molecule consists of two polynucleotide chains that are coiled around a common axis to form a double helix

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(B) $DNA$ $(Deoxyribonucleic 	ext{ acid})$ molecule consists of two polynucleotide chains that are coiled around a common axis to form a double helix structure.These two strands run in an anti-parallel direction, meaning one strand runs in the $5' 	o 3'$ direction and the other in the $3' 	o 5'$ direction.The nitrogenous bases of the two strands are linked together by hydrogen bonds, forming the rungs of the ladder-like structure.

How many polynucleotide chains is a deoxyribonucleic acid $(DNA)$ molecule composed of?

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