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Blababa [14]
3 years ago
9

Answer the following questions:

Biology
1 answer:
Dmitrij [34]3 years ago
7 0
The building blocks of DNA are called nucleotides which is composed of a five carbon- sugar group, phospahate bond and four bases of nitrogen groups. this makes the DNA intact. The hydrogen bonds holds the c<span>omplementary base pairs together at the nitrogen bases. The nitrogen bases are uracil, guanine, thymine and adenine.</span>
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