BIOL 1201 : EXAM 3
Document Summary
Molecular basis of inheritance: what is the structure of the genome, chromosomes & dna structure, how is the genome copied, dna replication, what is the genome used for, protein synthesis. Transformation- change in genotype and phenotype due to the assimilation of external dna by a cell: 3 main candidates dna, rna, and protein, discovered that dna was the transforming agent. Viral dna can program cells: bacteriophages- bacteria eaters or phages for short, virus- dna/ sometimes rna, enclosed by a protective coat, to produce more viruses, a virus must infect a cell and take over the cell"s metabolic machinery. Chargaff"s rule- the base composition varies between species, within a species number of a & t pairs are equal and g & c. The only way it will be able to work- no proofreading: can errors in dna be repaired after replication, some are repairable, but some are not.