1. Nucleic acids are polymers of .
2. The monomers of nucleic acids consist of a phosphate group, a five-carbon sugar, and a .
3. provides directions for its own replication. It also directs cell activities by providing instructions for building proteins.
4. A gene provides the directions to build a molecule of ; the genetic instructions it carries are then translated into the amino acid sequence of a protein.
5. A polynucleotide has a repeating backbone.
6. The structure of DNA is a double helix, held together by the complementary base-pairing of cytosine with guanine, and adenine with thymine.
7. RNA usually consists of a single strand.