Final answer:
DNA is a molecule that stores information about how to replicate a cell. It is composed of two strands forming a double helix shape. The strands are made up of nucleotides that pair with complementary bases on the other strand.
Step-by-step explanation:
DNA (deoxyribonucleic acid) is a molecule that stores information about how to replicate a cell and its chemical and structural components. It is made up of two strands that are coiled around each other in a double helix shape. Each strand is composed of nucleotides, which consist of a nitrogenous base, a five-carbon sugar called deoxyribose, and a phosphate group. The bases on one strand pair with complementary bases on the other strand through hydrogen bonds.