LIFE SCIENCE

Detailed explanation-1: -The molecules inside cells that carry genetic information and pass it from one generation to the next. Also called deoxyribonucleic acid.

Detailed explanation-2: -Nucleic acids are involved in the preservation, replication, and expression of hereditary information. Two major types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

Detailed explanation-3: -DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.