LIFESCI 1 Chapter 26, 27: LS1 Week 4
Document Summary
Bacteria: one of the three monophyletic domains of life, consisting of single-celled organisms with a single circular chromosome but not nucleus that divide by binary fission and differ from archaeons in many aspects of their cell and molecular biology. Archaea: one of the three domains of life, consisting of single-celled organisms with a single circular chromosome and no true nucleus that divide by binary fission and differ from bacteria in many aspects of their cell and molecular biology. Plasmid: in bacteria, a small circular molecule of dna carrying a small number of genes that can replicated independently of the bacterial genomic dna. Peptidoglycan: a complex polymer of sugars and amino acids that makes up the cell wall. Horizontal gene transfer: the transfer of genetic material between organisms that are not parent and offspring. Conjugation: the direct cell-to-cell transfer of dna, usually in the form of a plasmid.
