BIOL 2004 Study Guide - Midterm Guide: Lytic Cycle, Lysogenic Cycle, Antimicrobial Resistance
15 Dec 2017
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Document Summary
Prokaryotes are unicellular organisms that lack nuclear membranes. Dna sequence information now provides evidence which state the two distinct groups are eubacteria and archaebacteria. Archae is found in extreme environments such as hot springs. Bacteria are extremely diverse and come in a variety of shapes and sizes. Some are rod shaped where others are spherical. Other bacterial proteins functions much as cytoskeletal proteins do in eukaryotes: gives the structure and shape. Bacterial process ensure that one copy of the chromosome is allocated in each cell. Most bacterial genomes consist of a circular chromosome that contains a single dna molecule several million base pairs in length. Specific dna sequence where dna replication is initiated. Allws plasmid to replicate independently of the bacterial chromosome. Episomes are plasmids that can freely replicate and integrate into the bacterial chromosomes. It is an episome that controls mating and gene exchange. It is inherited dna molecules that are carried from gen to gen.
