BIOLOGY 1A03 Study Guide - Midterm Guide: Acetyl Group, Nuclear Membrane, Threonine

• School: McMaster University
• Department: Biology
• Course: BIOLOGY 1A03
• Professor: Alastair Tracey Rosa Da Silva

Document Summary

Human proteome represents full number of proteins that are expressed by hereditary information in dna (our genome) Human genome project revealed only 20-25,000 protein encoding genes. Have identified other regulatory mechanisms that contribute to over. Complexity of our proteome relative to genome is attributed to rna processing and post-translational modifications. 1 defining characteristics of eukaryotes is segregation of genetic information inside double membraned nuclear envelope. Transcription of dna into rna, and rna processing occurs within nucleus. Double membrane of nucleus is continuous and evolved from membranous network of single-membrane endoplasmic reticulum. Compartmentalization allows for more intricate control in regulation of cellular. Compartmentalization allows for more intricate control in regulation of cellular processes. Seen in eukaryotes, following transcription from protein coding genes, mrnas are prepared for translation. Mature mrnas then exported out of nucleus into cytosol where free/er bound ribosomes facilitate translation into polypeptides.