| A | B |
|---|
| DNA | a molecule present in all living things that contians information to determine traits |
| double helix | the shape of a strand of DNA which looks like a twisted ladder |
| replicate | to make a copy of a piece of DNA |
| gene | a string of nucleotides |
| chromosome | a long chain of DNA molecules that contains part of all of the genetic material of an organism. |
| bond | A chemical connection between molecules |
| trait | a distinguishing quality or characteristic, typically one belonging to a person. |
| mutation | the changing of the structure of a gene which gives a different trait than the original sequence of DNA |
