Biology 1001A Study Guide - Final Guide: Plant Reproductive Morphology, Sequential Hermaphroditism, Dioecy
4 Dec 2016
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Document Summary
Examples of genetic exchange/ recombination without reproduction, and of reproduction without genetic exchange/ recombination: recombination without reproduction: Bacteria have mating tubes that connect them and they can exchange genes: reproduction without recombination: How recombination contributes to population genetic variation: generates new multilocus combinations of alleles. Ab, ab, ab, ab: offspring are genetically distinct from either parent and (usually) from each other. Male and female function occur in the same individual: dioecious: separate sexes. Difference between sequential and simultaneous monoecy: sequential: starts as 1 sex and then switches to the other later, simultaneous: starts as male and female when born. Examples and predictions of size-advantage model of sex change: protandry: start off male and turn into female. E. g. small females disadvantageous -> small individuals better off being male: protogyny: start off female and turn into male. E. g. males have more to give being big -> small individuals better off being female.
