| A | B |
|---|
| DNA | a molecule present in all living things that contians information to determien traits |
| nucleotide | a subunit of DNA made up of a sugar, a phosphate, and a nitrogen base |
| phosphate | in DNA connects the sugars to each other |
| sugar | in DNA connects the base to the phosphate |
| base | one of four different pieces that make up the rungs of the DNA ladder |
| adenine | a base that connects with thymine |
| thymine | a base that connects with adenine |
| cytosine | a base that connects with guanine |
| guanine | a base that connects with cytosine |
| 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 |
