Biology And Biomedical Sciences BIOL 2960 Lecture Notes - Lecture 16: Cytosine, Thymine, Phosphodiester Bond
24 Feb 2017
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Document Summary
Dna -> transcription -> rna -> translation -> proteins. Central mechanisms of transcription and translation are conserved. Before mrna is finished being transcribed, ribosomes start to produce proteins. Processing happens in the nucleus mrna is transported from the nucleus to be translated. Convert r-strain (non virulent) bacteria into s-strain (virulent) When the s-strain was heat killed it became non virulent. R-strain mixed with dead s-strain resulted in a virulent bacteria that was recovered and determined to be s-strain. Something could genetically transform the r-strain, and the component must be heat stable. Treated griffith"s mixture with different chemicals and enzymes to destroy various components individually and see if the mixture will survive. Nucleic acids are polymers of nucleotides (chains of repeating units) Have 3 components: sugar: deoxyribose (dna), ribose (rna, nitrogenous base, phosphate group. Pyrimidine cytosine, uracil, thymine (c, u, t) Nucleotide has the phosphate group added to nucleoside at the 5" c.
