DNA Structure and Replication

DNA is made up of nucleotides.

DNA stands for Deoxyribose Nucleic Acid.

A nucleotide consists of a phosphate group, a sugar (deoxyribose), and a nitrogenous base.

The four nitrogenous bases in DNA are Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).

Adenine pairs with Thymine (A-T) and Cytosine pairs with Guanine (C-G).

DNA polymerase is the enzyme responsible for adding free nucleotides to the growing DNA strand during replication.

DNA helicase unwinds and separates the double-stranded DNA during replication.

Complementary base pairing ensures accurate replication of DNA, maintaining genetic information.

DNA has a double helix structure, consisting of two strands twisted around each other.

DNA replication is the process by which a cell makes an identical copy of its DNA before cell division.