The antiparallel nature of the DNA molecule m | vedclass

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(C) The $DNA$ double helix consists of two polynucleotide chains that run in opposite directions,which is known as antiparallel polarity.One strand ru

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The phosphate groups at the start of the two $DNA$ strands are in opposite positions (i.e.,$5' \rightarrow 3'$ and $3' \rightarrow 5'$).

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(C) The $DNA$ double helix consists of two polynucleotide chains that run in opposite directions,which is known as antiparallel polarity.One strand runs in the $5' \rightarrow 3'$ direction,while the other runs in the $3' \rightarrow 5'$ direction.This means that at one end of the double helix,one strand has a free $5'$-phosphate group while the other has a free $3'$-hydroxyl group,and vice versa at the other end.Therefore,the phosphate groups at the start of the two $DNA$ strands are in opposite positions.

The antiparallel nature of the $DNA$ molecule means that ......

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