BIO206H5 Chapter Notes - Chapter 3: Protein Kinase, Phosphorylation, Polynucleotide
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For many proteins, a phosphate group is added to a particular side chain, & then removed in a continuous cycle xii. * problem *- this costs energy with each turn of the cycle. 5/30/2010 4:30:00 pm: life depends on the ability of cells to store, retrieve, & translate the genetic instructions required to make & maintain a living org. Chromosomes" thread-like structures which contains both dna & protein: becomes visible as the cell begins to divide under a light microscope. A dna molecule consists of two complementary chains of nucleotides". * refer to figures 5-2 & 5-6 on pg. The structure of dna provides a mechanism for heredity". & other proteins that replicate it, repair it, and direct the expression of genes (cid:1) bacteria typically carry genes on a single, circular dna molecule (not much is known about the packaging, etc) Eukaryotic dna is packaged into multiple chromosomes": human genome contain approx.
