BIOLOGY 1A03 Lecture 3: lecture_3.pdf

• School: McMaster University
• Department: Biology
• Course: BIOLOGY 1A03
• Professor: Lovaye Kajiura

Document Summary

Adapter molecule trna is also used in protein coding. Genetic info ows from dna to rna to proteins. Di erences in genotype may cause changes in phenotype. E. g. di erences between forest mice and beach mice; di erent coat colours aid in camou age. In prokaryotes, transcription and translation are coupled; translation begins before transcription is nished. Promoter region rna polymerase attaches to initiation site. Consensus sequence the most common nucleotides found at a speci c dna or rna location. What are the speci c terms related to prokaryotic translation. Mediate binding of rna polymerase to promoter region. Termination of transcription depends on type of rna polymerase. What are the purposes of rrnas, mrna synthesis, trna. Bacteria use a single sigma factor with each polymerase. Rna transcript has the same base-sequence as the non-template strand (exception of u for t) There"s a uracil in the template dna strand (shouldn"t be there!) Changes protein function and ultimately whatever process involving it.