BIS 2C Lecture 7: BIS 2C Lecture : Lecture 7

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Lecture 7- lateral gene transfer & quorum sensing. Although some aspects of their metabolism remain unknown, they get electrons by oxidizing hydrogen and fix. Bacteria and archaea only have haploid genomes, unlike eukaryotes (you can be haploid, diploid, or more) Except for mutations, mitosis and binary fission result in duplicate copies of the parent cell. Meiosis always results in a reduction in ploidy. If you are bacteria or archaea, you are already haploid (can only do mitosis) Mitosis and binary fission are asexual processes that result in exact duplicates. Mutations may occur and be passed on to descendants. Bacteria and archaea don"t do meiosis, they reproduce by binary fission. The only way they can get genetic variation is by mutation. Passing on traits from parent to offspring is heredity . This is also referred to as linear or vertical inheritance. Penicillin as a wonder drug : huge innovation- antibiotics.