| A | B |
|---|
| Gene | Region of DNA which codes for a protein |
| Nucleotides | Base joined to sugar and phosphate |
| introns | doesn't code for polypeptides |
| exons | code for proteins |
| locus | location |
| triplet | a sequence of three bases |
| polypeptide | protein |
| base A | adenine |
| base C | cytosine |
| base G | guanine |
| base T | thymine |
| double helix | structure - stable |
| DNA | Deoxyribose nucleic acid |
| Specific base pairing that joins to A | T |
| Specific base pairing that joins to G | C |
| Mutation | change in the base sequence |
| Base sequence of a gene determines.. | amino acid sequence of a polypeptide |
| Non-functional proteins due to.. | differences in base sequences of alleles of a single gene |
| Eukaryotic cell | cell with a nucleus |
| Components of DNA nucleotides | deoxyribose, phosphate and the bases (A,C,G,T) |
