| A | B |
|---|
| DNA | a molecule that is present in all living cells and that contains the information that determines the traits that a living thing inherits and needs to live. |
| nucleotide | in a nucleic-acid chain, a subunit that consists of a sugar, a phosphate, and a nitrogenous base |
| RNA | a molecule that is present in all living cells and that plays a role in protein production |
| ribosome | a cell organelle composed of RNA and protein; the site of the protein synthesis |
| mutation | a change in the nucleotide-base sequence of a gene or DNA molecule |
| DNA 2 | the material that makes up genes |
| DNA 3 | it carries coded information that is copied in each new cell |
| DNA molecule | looks like a twisted ladder |
| halves of the ladder | long strings of nucleotides |
| rungs of the ladder | complementary pairs of bases |
| gene | set of instructions for assembling a protein |
| proteins | are fundamental to the function of the cells and the expression of traits |
| cytoplasm | where proteins are assembled |
| mutation 2 | occurs when the order of the DNA bases are changed |
| insertion, deletion, and substitiution | the three main types of mutations |
