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aliya0001 [1]
3 years ago
8

What makes up the sides of the “ladder” of a dna molecule?

Biology
1 answer:
LUCKY_DIMON [66]3 years ago
3 0
Adenine, guanine, thymine and cytosine are the four nitrogenous bases that are attached to a sugar molecule<span> on each </span>side of the ladder<span>. When a phosphate, a sugar and a base form an attachment, they create a sub-unit of </span>DNA<span> called a nucleotide. Each nitrogenous base is held together by a hydrogen bond.</span>
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