Biology 1001A Lecture Notes - Lecture 14: Isogamy, Anisogamy, Plant Reproductive Morphology
25 Apr 2017
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Examples of genetic exchange/ recombination without reproduction, and of reproduction without genetic exchange/ recombination. You can have reproduction without sex for example unicellular bacterium. There is no genetic exchange necessary for this to take place; the daughter cells are identical to the parent cell. You can also have genetic exchange or sex without reproduction. For example, bacteria using a tube to transfer dna to a recipient. Therefore, se(cid:454)ual re(cid:272)o(cid:373)(cid:271)i(cid:374)atio(cid:374) a(cid:374)d reprodu(cid:272)tio(cid:374) do(cid:374)"t (cid:374)ecessarily have to go hand-in-hand. Reproducing sexually generates new multilocus combinations of alleles. Offspring are genetically distinct from each parent and one another (usually). Dioecious- male and females are not within the same individual. Monoecious- hermaphroditic; single organism is both male and female. Plant has both male and female flowers, pollen w both female and male gametes. Another example is a type of sea slug. Sequential: they can only be either male or female at one time; they will change sexes throughout life.
