BI 433 Study Guide - Comprehensive Final Exam Guide - Protein, Phosphorylation, Mutation
20 Nov 2018
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Document Summary
Cells transcribe their dna into an rna intermediate. Made of basic building blocks- proteins, nucleic acids, carbohydrates, lipids. Name referred to how there are able to be stained. At this point we still didn"t know dna was the genetic material. In mid 1900s, dna was determined to be the genetic material converted s to r change. They then took cell extract from s cells, fractionated it and incubated the r strain with the s strain to see which set up allowed the transformation to occur. Dna was providing the hereditary material for those cells. X- ray crystallography determined that dna is a double helix. Used to demonstrate that dna is a double stranded structure is a double helix. Nucleotides assembled into strands, each with a specific polarity. Confirmation of lowest energy bases are held together using h- bonding. There is a great amount of dna that has to be squeezed into a cell.
