Across
- 1. double-stranded nucleic acid that stores genetic information; also known as deoxyribonucleic acid.
- 3. basic unit of structure and function of living things.
- 4. chain of nucleotides that alone or with another such chain makes up a nucleic acid.
- 7. energy-carrying molecule that cells use to power their metabolic processes; provides the cell with an immediate usable form of energy.
- 8. an individual living thing.
- 13. pair of nucleotide bases that bond together—either adenine and thymine (or uracil) or cytosine and guanine.
- 16. the small molecules which are combined over and over to make up a polymer.
- 17. a new cell that results from cell division; divides from parent cell.
Down
- 1. double spiral shape of the DNA molecule.
- 2. a group of organisms that can mate with one another to produce fertile offspring.
- 5. compound found in living things that contains mainly carbon.
- 6. monomer of nucleic acids; contains a five-carbon sugar, phosphate group, and nitrogenous base.
- 9. monomer of protein.
- 10. organic compound made up of amino acids.
- 11. the starting cell that divides and forms two daughter cells.
- 12. a segment of DNA that carries the genetic code to make a specific polypeptide chain.
- 14. the ability to do work.
- 15. universal code of three-base codons that encodes the genetic instructions for the amino acid sequence of proteins.
- 18. single-stranded nucleic acid that helps make proteins.