Adenine always pairs up with Thymine, while Guanine pairs up with Cytosine
Nitrogenous base pairs
The DNA sequence is usually represented as a string of letters. There are only four available letters: A, T, C, and G. Each of these letters represents a base or a single rung along the genetic ladder. The most important thing to remember is that A always pairs with T, and C always pairs with G
- Adenine is long and has two binding sites.
- Thymine is short and has two binding sites.
- Guanine is long and has three binding sites.
- Cytosine is short and has three binding sites.