BIOL 112 Lecture 3: Lecture 3 - Proteins and Nucleic Acids.pdf

• School: McGill University
• Department: Biology
• Course: BIOL 112
• Professor: Frieder Schoeck

Document Summary

Dna - storage of genetic information ! Mrna - reading of the genetic information ! Other rnas - regulation of genes; machines ie rna"s in the ribosomes which are curtail for. !- central dogma: explains ow of genetic info within a biological system from dna (genetic translation ! code storage) to rna (intermediate messenger) to protein (functional molecules) ! Nucleic acid polymers are made up of monomers called nucleotides ! Structure of nucleotide: phosphate group, 5-carbon (pentose) sugar, nitrogenous base ! Deoxyribose in dna (has one less oxygen) ! Very energy rich bonds, breaking them releases the energy. Phosphates: can have 1, 2, or 3 attached to a nucleotide ! needed to polymerize dna and rna ! Uracil (u) in rna, thymine (t) in dna! Adenine (a) ! condensation reaction ! phosphate of the next ! Form between sugar of 1 nucleotide and added to the 3" end! 5" end to the 3" end; each next monomer is.