BIS 101 Chapter Notes - Chapter 5: Rolling Circle Replication, Hfr Cell, Extrachromosomal Dna
10 Oct 2016
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Textbook chapter 5- the genetics of bacteria and their viruses. Prokaryotes: an organism composed of a prokaryotic cell, such as a bacterium or a blue-green alga. Viruses: a particle consisting of nucleic acid and protein that must infect a living cell to replicate and reproduce. Bacteriophage (phage): a virus that infects bacteria. Dna transfer on a plasmid, by transformation or by transduction, constitutes a process known as horizontal transmission (inheritance of dna from another member of the same generation), a type of gene transmission without the need for cell division. Vertical transmission (inheritance of dna from a member of a previous generation), the passage of dna down through the bacterial generations. Phage recombination: the production of recombinant phage genotypes as a result of doubly infecting a bacterial cell with different (cid:364)parental(cid:365) phage genotypes. Plating: spreading the cells of a microorganism (bacteria, fungi) on a dish of nutritive medium to allow each cell to form a visible colony.
