| A | B |
|---|
| Ribose | the sugar molecule of every RNA nucleotide |
| Uracil | a nitrogen containing base |
| Messenger RNA (mRNA) | RNA nucleotides in the form of a single uncoiled chain |
| Transfer RNA (tRNa) | single chain of about 80 RNA nucleotides |
| Ribosomal RNA (rRNA | most abundant form of RNA |
| Transcription | process where genetic information is copied from DNA to RNA |
| RNA polumerase | primary transcription enzyme, synthesizes RNA copies of specific sequences of DNA |
| Termaniation signal | Specific sequence of nucleotides that marks the end of a gene |
| Promoters | marks the beginning of the DNA chain that will be transcribes |
