Transcription & Translation GENE EXPRESSION Transcription & Translation

Transcription: DNA → RNA Base Pairing Rules: A-U C-G

Translation: RNA → a.a. → protein proline alanine methionine tRNA phenylalanine Cytoplasm anticodon tRNA tRNA anticodon anticodon codon codon codon rRNA

Gene Expression Base Pairing Rules: A-U C-G Cytoplasm Nuclear Membrane mRNA Transcription Cytoplasm Nuclear Membrane Nucleus Base Pairing Rules: A-U C-G Translation

DNA vs. RNA *double stranded *A, T, G, C *deoxyribose *single stranded *A, U, G, C * ribose

Transcription vs. DNA Replication *makes an RNA molecule *only 1 DNA strand is used as template *makes copies of DNA molecule *both strands of DNA are used as a template

2 3 1. Which step below represents transcription? 2. Which step below represents translation? 3. Which step below represents DNA replication? 1 (Proteins)

DNA: Codons: GUC AUA CUA 5. What are the codons that correspond to the following segment of DNA? CAG TAT GAT 6. What are the anticodons that correspond to the following segment of mRNA codons? UUA – UAC – CAG mRNA: anticodons: AAU AUG GUC