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01-12-2020
Biology

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the rungs or steps of dna are made of

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briana050207 briana050207

01-12-2020

answer

The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of 4 types of nitrogen bases. Two of the bases are purines- adenine and guanine.

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Аноним Аноним

01-12-2020

Answer:

The rungs of DNA are made of nucleic acids, specifically adenine, cytosine, guanine, and thymine. Hope this helps!

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