BIOMOLECULES AND ENZYMES

Detailed explanation-1: -These chemical bonds act like rungs in a ladder and help hold the two strands of DNA together. There are four nucleotides, or bases, in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T). These bases form specific pairs (A with T, and G with C).

Detailed explanation-2: -In DNA, adenine always pairs with thymine (A-T), and guanine always pairs with cytosine (G-C). RNA is the same, except that adenine always pairs with uracil (A-U).

Detailed explanation-3: -In DNA, adenine correctly pairs with thymine and guanine correctly pairs with cytosine.

Detailed explanation-4: -Final answer: In DNA the complementary bases are adenine and thymine, guanine, and cytosine.

Detailed explanation-5: -What is the complementary base pairing rule for DNA? Complementary base pairs refer to the nitrogenous bases adenine, thymine, cytosine, and guanine. in a double strand of DNA, adenine will always pair with its complement thymine and cytosine will always pair with its complement guanine.