ANTA01H3 Lecture Notes - Lecture 2: Nitrogenous Base, Thymine, Transfer Rna
Document Summary
Goal: to understand what people mean when they talk about a dna sequence, and to come to an understanding of why we refer to dna as the blueprint of life . You can think of this as being like a ladder, with the two ends twisted in opposite directions. The sides of the ladder are made up of sugar (s) and phosphate (p) groups. Each rung of the ladder is made up of two nitrogenous bases which bond with one another via hydrogen bonds to hold the ladder together. In dna there are 4 possible nitrogenous bases: These bases form bonds only in specific pairs: A always bonds with t; c always bonds with g. Protein synthesis part 1: transcription (or getting the information from the. However, the information that it carries needs to be conveyed to other parts of the cell.
