BIS 2C Lecture Notes - Lecture 10: Giant Tube Worm, Steatomys, Polytomy
30 Aug 2016
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Reproduction in bacteria & archaea is fundamentally different than in. Binary fission (no cell cycle), rapid reproduction, haploid (n) genomes, no gametes, no meiosis, no sex. It"s an exchange of genes often between unrelated taxa. Involves small parts of the genome (don"t exchange large, complex: transformation, transduction things) Doesn"t result in offspring (don"t create babies) Can create recombinant genomes (getting dna from other sources into genome and then reproduce through binary fission to pass onto offsprings. So what: human implications, agrobacterium, phylogenetic implications, confounds phylogeny (very hard to distinguish, it happens all the time too) Article: culture independent studies on microbes (went directly to the environment to sample and produce phylogeny) Symbiosis = an association between at least two different organisms in which at least one of them benefits. Eukaryotes as a group are metabolically limited in their capabilities relative to. Eukaryotes are less able to acquire" metabolic processes from other species via lateral gene transfer.
