MCB 150 Lecture Notes - Lecture 17: Sigma Factor, Dna Replication, Dna
27 Feb 2017
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Review session next monday 5-7 100 noyes. Template strand is read in 3" -> 5". Both recognize a start signal of a specific bases (ori in replication, promoter in transcription) Replication uses both parental strands as templates. Transcription only uses one strand as a template. Need to prime with rna molecules in both. Transcription makes copy of gene of interest (gene that needs to be copied to make something) Transcription happens mostly continuously (need rna for making a protein), replication occurs once per cell cycle. Conserved - being conserved indicates that the one thing being investigated is similar in many different places. Both conserved, but they are different from each other. Being a consensus indicates this is specifically what you"ll find at that position. All trees use leaves, but the leaves are different. All promoters in e coli look the same, but you don"t know exactly what they look like.
