| A | B |
|---|
| Thomas Morgan | experimaented with fruit flies to discover that genes carry hereditary information |
| biochemical molecular genetics | the study of the chemisrty of genetics |
| Protein with dna | make up chromosomes |
| DNA | contains instructions for life |
| dna's shape | double helix |
| doubles helix sides | alternating sugars and phosphates |
| nitrogenous bases | adenine, thymine, cytosine, and guanine |
| purines | adenine and guanine |
| pryimidines | thymine and cytosine |
| "s" phase | part of the cell cycle when dna replicates |
| dna polymerase | an enzyme that intiates the start of new nitrogen bases coming into place |
| mutation | when mistakes or environmental factors cause a change in dna's genetic code |
| point mutation | when a base is substituted for another |
| gene mutation | when a whole gene has been destroyed or lost |
| dna's location | in the nucleus |
| methionine | what every amino acid chain starts with |
| initiation | when the transcription enzyme attaches itself to a specific region on the dna |
| elongation | when the rna polymerase leaves the promotor region and moves along coding the strand of dna |
| termination | when the rna polymerase reaches theend of the dna to be read and the mrna is realeased and the dna comes back together |
| uracel | what rna uses in the place of thymine |
