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BiologyBiology
5 May, 22:27

Answer the following questions:

What type of bond holds the backbone of DNA together and keeps the nucleotide sequence intact?

What type of bonds holds the complementary base pairs together at the nitrogen bases?

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Answers (1)
  1. 6 May, 01:33
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    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 omplementary base pairs together at the nitrogen bases. The nitrogen bases are uracil, guanine, thymine and adenine.
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