Final answer:
Hydrogen bonds are vital in pairing pyrimidine and purine nucleotides in DNA strands.
Explanation:
Hydrogen bonds are the type of bonds that bind pyrimidine nucleotides on one strand of DNA to purine nucleotides on the complementary strand of DNA. Specifically, adenine pairs with thymine via two hydrogen bonds, and guanine pairs with cytosine via three hydrogen bonds. These hydrogen bonds play a crucial role in maintaining the structure of the DNA double helix.
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