VTPB 405 Lecture Notes - Lecture 4: Pribnow Box, Hydrogen Bond, Replisome
16 Sep 2016
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10 base pairs make up 1 turn of the helix. Viruses contain either rna or dna, can be linear or circular and can be single or double stranded. Plasmids code for advantages for the organisms in some way (antibiotic resistance) Transposable elements- segments of dna that can move from one site to another on the same dna molecule. R plasmids most common. confer resistance to antibiotics and other growth inhibitors. Bacteriocins- proteins produced by bacteria that inhibit or kill closely related species or even different strains of the same species. Semiconservative- each of the two progeny double helices have one parental and one new strand. Dna polymerase 3 is the primary enzyme replicating chromosomal dna require a primer* Dna synthesis begins at the origin of replication replication fork is where replication occurs. Dna polymerase 1 removes the rna primer and replaces it with dna. Dna synthesis is bidirectional is prokaryotes - 2 replication forks moving in opposite directions.
