| A | B |
|---|
| chromosome | in a eukaryotic cell, one of the structures in the nucleus that are made of DNA and protein; in a prokaryotic cell, the main ring of DNA |
| DNA | the set of instructions found in the nucleus of a cell |
| double helix | the shape of a DNA strand that resembles a twisted ladder |
| egg cell | female sex cell |
| nucleus | the organelle that contains DNA |
| nucleotide | small molecules that make nucleic acids |
| protein | large molecules made up of smaller molecules called amino acids |
| replication | process where DNA splits itself down the middle and creates a copy of itself |
| sperm cell | male sex cell |
