HORTICULTURE

Detailed explanation-1: -Two nitrogen-containing bases (or nucleotides) that pair together to form the structure of DNA. The four bases in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T). These bases form specific pairs (A with T, and G with C).

Detailed explanation-2: -Molecules called nucleotides, on opposite strands of the DNA double helix, that form chemical bonds with one another. 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).

Detailed explanation-3: -Base Pair The two strands are held together by hydrogen bonds between pairs of bases: adenine pairs with thymine, and cytosine pairs with guanine. National Human Genome Research Institute. 38.6K subscribers.

Detailed explanation-4: -Adenine and guanine have a fused-ring skeletal structure derived of purine, hence they are called purine bases.

Detailed explanation-5: -Last time we saw that each nucleotide contains a nitrogenous base: adenine, cytosine, guanine or thymine. All of these molecules are called nitrogenous bases because they contain nitrogen atoms. The lone pairs of electrons on these nitrogen atoms are critical for binding DNA together [1].