They are:
- Adenine and thymine
- Cytosine and guanine
hydrogen bonds
Adrenine (A) pairs with Thymine (T) Cytosine (C) pairs with Guanine (G)
Base pairing rules and complementary base rules are related because of DNA. If one can find the base pairing on a strand of DNA, usually the complementary base is easily found.
A-T base pairs have 2 hydrogen bonds and G-C base pairs have 3 hydrogen bonds. Therefore, A-T base pairs are weaker than G-C base pairs.
Adenine pairs with Thymine ( A-T) Guanine pairs with cytosine ( G-C)
complmentary
ji
G (Guanine) pairs with C (Cytosine) A (Adenine) pairs with T (Thymine)
adenine and thymine, cytosine and guanine or a pairs with t and c pairs with g
If one strand of DNA has a nucleotide base sequence of tcaggtccat, its complementary strand is agtccaggta. Adenine pairs with thymine, while guanine pairs with cytosine.
Complementary Base- pairs
There are four nucleotides that combine together in DNA to form its two base pairs. Adenine (A) pairs with thymine (T). Cytosine (C) pairs with guanine (G). When RNA transcribes these pairs from the original DNA molecules, uracil (U) pairs with adenine, replacing thymine.