BIO 2306- Final Exam Guide - Comprehensive Notes for the exam ( 101 pages long!)
Document Summary
Chapter 14 rna molecules and rna processing. Eukaryotes adding 5" cap adding 3" poly(a) tail removing introns. Shine-dalgarno sequences in prokaryotes only pre-mrna processing (occurs in nucleus) Binding of ribosome to mrna for translation. If-3 + small subunit trna (charged) + if-2 + gtp = complex: small subunit + mrna. Gtp > dissociates > gdp: large subunit joins ; creating 70s initiation complex. 1st trna is attached to initiation codon. If-3 + small subunit == prevents large subunit from binding trna (charged w/n-formyl methionine) forms a complex. What is the main purpose? to get ribosome (large + small subunit) onto mrna attach trna onto initiation codon. If-3 + small subunit small subunit + mrna. Large subunit joins trna onto initiation codon charged trna + if-2 + gtp = complex complex + initiation codon. 6. the trna, mrna, and rf"s are released from ribosome. Addition of chemical groups glycosylation, acetylation, phosphorylation.
