DNA

DNA (Deoxyribonucleic acid) is the fundamental molecule that carries the genetic instructions for the development, functioning, growth, and reproduction of all known organisms. It is famously shaped like a double helix, a structure resembling a twisted ladder.

The twisted ladder structure is composed of two main parts:

• The Backbone: The outer rails of the ladder are made of alternating sugar (deoxyribose) and phosphate molecules. This backbone runs in opposite directions on each strand, known as antiparallel orientation.

• The Rungs (Base Pairs): Connecting the two rails are pairs of four nitrogenous bases: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). They pair specifically: A always bonds with T, and G always bonds with C.https://jayasundhar.blogspot.com/