LIFE SCIENCE

Detailed explanation-1: -Replication relies on complementary base pairing, that is the principle explained by Chargaff’s rules: adenine (A) always bonds with thymine (T) and cytosine (C) always bonds with guanine (G).

Detailed explanation-2: -Chargaff’s rule, also known as the complementary base pairing rule, states that DNA base pairs are always adenine with thymine (A-T) and cytosine with guanine (C-G). A purine always pairs with a pyrimidine and vice versa.

Detailed explanation-3: -DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.

Detailed explanation-4: -Base-Pairing Underlies DNA Replication and DNA Repair This process entails the recognition of each nucleotide in the DNA template strand by a free (unpolymerized) complementary nucleotide, and it requires that the two strands of the DNA helix be separated.