[BIO3570] - Final Exam Guide - Everything you need to know! (47 pages long)

• School: University of Ottawa
• Department: Biology
• Course: BIO 3570
• Professor: Marc Ekker

Document Summary

Rna pol synthesizes rna until termination sequence mrna is not modified after transcription. Both incorporate met as their first amino acid. Ribosomes: 80s 60s and 40s (rrna 4 types) Starts when rna pol binds to promotor region. P(cid:396)o(cid:373)oto(cid:396) (cid:272)o(cid:448)e(cid:396)s the fi(cid:396)st (cid:271)ase t(cid:396)a(cid:374)s(cid:272)(cid:396)i(cid:271)ed i(cid:374) na, (cid:862)le site de demarrage(cid:863) de la t(cid:396)a(cid:374)s(cid:272)(cid:396)iptio(cid:374) (cid:862)positio(cid:374) +(cid:1005)(cid:863). Na pol (cid:272)o(cid:374)ti(cid:374)ues to s(cid:455)(cid:374)thesize na u(cid:374)til it (cid:396)ea(cid:272)hes the termination sequence. Capacity of synthesis (% of total rna synthesis) The difference reflect the relative stability of all the rna rrna and trna are more stable than mrna so mrna is quickly degraded after being translated to protein (for bacteria, takes ~3 min) For bacteria, mrna devotion can be up to 60% when the (cid:271)a(cid:272)te(cid:396)ia is g(cid:396)o(cid:449)i(cid:374)g slo(cid:449)l(cid:455) so does(cid:374)(cid:859)t (cid:374)eed to (cid:373)ake (cid:374)e(cid:449) (cid:396) na a(cid:374)d t na. 4 steps of transcription: recognition of the template dna: rna pol binds to promotor region of dna and dissociates the two dna strands.