| A | B |
|---|
| DNA | molecule that controls all activities |
| Nucleotide | a monomer of DNA |
| Helix | spiral staircase shape of DNA |
| Replication | DNA reproduction |
| DNA Helicase | enzyme that breaks the hydrogen bonds of DNA bases |
| DNA Polymerase | enzyme that adds nucleotides to form new DNA |
| Complimentary bases | A-T and C-G |
| Purines | double ring base molecule |
| Pyrimidines | single ring base molecule |
| Transcription | Process where DNA makes mRNA |
| Uracil | Nitrogen base found only in RNA |
| Translation | Process involving all RNAs assembling Amino Acids |
| Triplet | sequence of 3 DNA bases |
| Codon | 3 nucleotide sequences on the mRNA |
| Anticodon | 3 nucleotide sequences on the tRNA |
| RNA Polymerase | adds complimentary nucleotides during transcription |
| Messenger RNA | carries the code for protein formation |
| Transfer RNA | has the anticode and carries amino acids |
| Ribosomal RNA | makes up the ribosomes |
| Operator | on-off switch at the promoter site |
| Operon | unit of gene regulation in a bacterium |
| Lac Operon | controls the metabolism of lactose |
| Repressor | Protein that blocks RNA polymerase |
| Introns | long segments of nucleotides with no information |
| Exons | portions of a gene that are translated into proteins |
| Polymer | long chain molecule |
| Monomer | a link in a chain |
| Enzyme | catalyst that speeds up metobolic reactions without being changed |
