BIOL 1107 Lecture Notes - Lecture 3: Cell Membrane, Nucleosome, Ribonuclease
30 Jan 2018
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Make a complete turn every 10 base pairs. Every single carbons are attached to hydrogen bonds. Contains one or more carbon-carbon double bonds. Large enzyme could get into it and start breaking. Lipids can more easily move across the plasma membrane. 1) dna duplex 2 nm in diameter. Dna wraps around histone proteins and gets condensed. You have millions of based paris per chromosome. How can we control dna expression by playing around with base pairs. Early microscopists: discovered chromosomes which contain both dna and protein- all eyes on protein. 1920"s: biochemist determined that dna contained 4 bases, sugar and phosphate. 1920"s: griffith"s caterial transformation experiment illustrated that there was. Turned non virulent bacteria into virulent bacteria. When you break down dna you dont have a transformation. 5 prime carbon bonded to phosphate groups. Phosphate group bonded to 3 prime carbon a boce it. Allow for the bases in the middle to make the right hydrogen bond.
