BIOLOGY 1M03 Lecture Notes - Lecture 8: Genetic Recombination, Sexual Selection, Isogamy
15 May 2017
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Document Summary
If an asexual and sexual species reproduce at the same rate (two offspring per individual per generation) the asexual species will outcompete the sexual species. This is true if one sex (males) does not reproduce offspring. This could give offspring of sexual species an advantage: genetic recombinant may provide an advantage to offspring of sexual species. The population size doubles per generation for asexual. No major growth in population for sexual reproduction. Expect that the asexual would overwhelm those that sexually reproduce. Although males do not carry the child, they help to raise the child, so they still contribute to fitness and create an advantage since they have 2 parents to help out. Competitive interaction can weed out bad mutations, only those with strong, beneficial mutations reproduce. No competition in asexual species (reproduce wit yourself) Sex is the same as genetic recombination. Recombination one from mother and father, get crossed over to create variation.
