Biochemistry 3380G Study Guide - Final Guide: Nucleosome, Nuclear Pore, Sigma Factor

• School: Western University
• Department: Biochemistry
• Course: Biochemistry 3380G
• Professor: Dr.B

Document Summary

Dna the blueprint of life: dna itself is an inert chemical. In order to code for life the information within dna must be expressed: the human genome encodes ~25 000 different genes. The central dogma: defines the fundamentals of gene expression, there are two key steps making the rna and making the protein, dna rna protein, transcription translation. False there are a lot more than 2. If dna was the only genetic material then we can"t degrade it: allows expression of a gene to be stopped quickly because it can be degraded, rna provides additional opportunities to regulate the expression of genes. Ex. insulin which needs to be cleaved in order to be active: modified through phosphorylation, ubiquination, acetylation, etc, protein degradation, control the rate at which we make proteins through translation and rate of their degradation. Answer: the first step saves energy and resources if you regulate it before starting.