Biology 1001A Lecture 14: Cycle 7. Lecture 14
3 Feb 2019
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Document Summary
Lizards - both individuals are female and don"t fuse gametes: asexual reproduction, creates 2 identical eggs in each mother. Sex results in new combination of alleles being formed: mutation: only source of new variation. Sexual recombination can take pieces apart and put them back together (make new combos) Sexual doesn"t create variation but creates new combination. Reproducing sexually generates new multi-locus combinations of alleles. Ab, ab, ab, ab: offspring genetically distinct from either parent and (usually) from each other, except: armadillos, their offspring are genetically identical! Asexual: essentially "clone" themselves: obligately asexual, unicellular: via binary ssion, these sh thingys: no males in the population, "virgin birth" Facultatively asexual: tree thingys: option of producing asexual: vegetative propagation when environment are good, they can asexually reproduce, when environment is bad, they reproduce sexually. Sexually reproducing species may be dioecious (separate sexes: humans or monoecious (hermaphrodites, simultaneous hermaphrodites: Every ind are both male and female at same time: rose plants.
