Use common objects such as paper clips or scraps of paper to model the changes in number and movement of chromosomes during meiosis. Compare the timing, location, numbers of cells, numbers of chromosomes, and genetic outcomes of mitosis and meiosis. Sex, reproduction, and the usefulness of genetic variability Reproduction and sex are not necessarily linked. Asexual reproduction tends to produce genetically identical individuals. Maybe not a good idea if the enfironment is variable.
Genetic changes can occur randomly by mutation.
Sexual reproduction produces genetic variability within a population. 317, Figure 15.10, and pg. There is something wrong with this illustration. There is no way to predict which set of chromosomes will end up in which daughter cell. It is only certain that, unless something goes wrong, each daughter cell will have one of each chromosome.