BIOL 210 Lecture Notes - Chromosome, Gametophyte, August Weismann
23 Sep 2014
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Document Summary
Sex is the queen of problems in evolutionary biology. Perhaps no other natural phenomenon has aroused so much interest; certainly none has sowed as much confusion . But realize that evolution doesn"t occur for the good of population but evolution occurs as competition between individuals (selfish gene) There is a kind of crisis at hand in evolutionary biology -- Since 1880, evolutionists have argued over the selective advantage of sexual reproduction. So far, no clear-cut winners have emerged from this controversy . To do justice to all the theories would take a book -- it has already taken several yet no definitive verdict has emerged . The gene"s-eye view of the cost of males. If introduce a single asexual female, see how many generations it takes for extinction of sexual organisms to become extinct. Need to find benefits to sexual reprod that occur on a faster time scale (w/ in generations!) Asexual lineages found at the tips of a phylogeny.
