This information is written in a code comprising four molecules known as ‘bases’: adenine (A), thymine (T), guanine (G), and cytosine (C). This genetic code is written in the form of a chain combining these four bases, which in turn, interact with each other in pairs forming what we all know as the DNA double helix.
Our cells are capable of reading and transcribingthis information so that our bodies can properly function.
This makes DNA the most important molecule in our entire body. Therefore, several mechanisms are in place to help protect it from possible damage. Damage to our DNA is continually repaired to help prevent diseases that can become incompatible with life from occurring.
One of the key DNA protection mechanisms, the packaging of DNA into structures called chromosomes, occurs when cells are going to divide.