How Does Meoisis Differs From Mitosis And How These Differences Affect Genetic Diversity?

735 Words Dec 10th, 2015 3 Pages
11. Explain how Meoisis differs from mitosis and how these differences impact genetic diversity in sexually reproducing populations. Mitosis is the process a cell must go through to divide its nucleus to form two new cells. This occurs after Interphase so that all DNA and proteins have been synthesized. Mitosis goes through five phases including: prophase, prometaphase, metaphase, anaphase, and telophase. During each of these phases, the information within the cell is either being prepared to split, lined up equally, or actually splitting in half that way a new cell can have the same information. Cytokinesis occurs after mitosis and actually splits the cell itself in half that way a cell does not have multiple nuclei that could later cause problems within the organism. During mitosis, chromosomes containing DNA are attached to the centrosomes by spindle fibers that form during prometaphase. The chromosomes are then lined up on the metaphase plate, and later pulled to opposite poles by the spindle fibers.
These things also occur in meiosis, but not until the second half of the process. The meiosis process occurs in two parts, each consisting of prophase, metaphase, anaphase, and telophase. Meiosis I is referred to as the “reduction division” because the homologous chromosomes, chromosomes that are identical, are separated into two different cells. These two new cells are referred to as haploid because they only contain one copy of each chromosome (1n). Meiosis I differs…

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