The backbone of a DNA molecule is made up of | vedclass

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(B) The backbone of a $DNA$ molecule is composed of an alternating chain of deoxyribose sugar and phosphate groups.These sugar and phosphate units are

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Sugar-phosphate-sugar chain

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(B) The backbone of a $DNA$ molecule is composed of an alternating chain of deoxyribose sugar and phosphate groups.These sugar and phosphate units are linked by phosphodiester bonds to form the structural framework of the $DNA$ strand.The nitrogenous bases (adenine,guanine,cytosine,and thymine) are attached to the sugar molecules and project inward to form base pairs with the complementary strand.

The backbone of a $DNA$ molecule is made up of

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