| A | B |
|---|
| DNA | the information and instructions for making new cells |
| nucleotide | subunit of DNA made of a sugar, phosphate and base |
| adenine | one of four bases, pairs with thymine |
| thymine | one of four bases, pairs with adenine |
| cytosine | one of four bases, pairs with guanine |
| guanine | one of four bases, pairs with cytosine |
| ribosome | organelle where proteins are made |
| mutation | a change in the order of DNA bases |
| mutagen | anything that can damage or cause changes in DNA |
| pedigree | used for tracing family history of disease |
| genetic counselor | examines a couple's family history and genetic tests to determine the possibility of having a child with a genetic disease |
| genetic engineering | allows scientists to change genes in an organism |
| transgenic organism | an organism with genes from a different organism |
| Rosalind Franklin | X-rays of DNA |
| Watson and Crick | DNA model |
| protein | made up of chains amino acids |
| ribosome | organelle responsible of assembling proteins |
| deletion | a DNA base is left out |
| insertion | an extra DNA base is added |
| substitution | an incorrect base replaces the correct one |
