| A | B |
|---|
| mRNA | takes a message from DNA to ribosomes |
| rRNA | makes up ribosomes, where proteins are made |
| tRNA | transfers amino acids to the ribosomes |
| transcription | the process by which a mRNA copy is made from a portion of DNA |
| triplet code | each codon consists of 3 nucleotide bases |
| RNA polymerase | enzyme that links nucleotides together during transcription |
| anticodon | a group of 3 bases that is complementary to a specific codon of mRNA |
| polysome | string of ribosomes translating mRNA during protein synthesis |
| helicase | enzyme that unwinds DNA molecule |
| DNA polymerase | proofreads, joins complimentary nucleotides |
| topoisomerase | prevents DNA from getting tangled up when unwinding |
| introns | segments of a gene that DO NOT bind to mRNA and therefore DO NOT code for protein |
| exons | segments of a gene that DO bind to mRNA and therefore DO code for protein |
