Bio 12 - 2 During synapsis which occurs in prophase I...

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2) During synapsis, which occurs in prophase I, homologous chromosomes find and line up with each other. The synaptonemal complex holds these together homologues together. During this intimate association, genetic recombination or “crossing over” can occur in which sections of one chromosome move and replace the section of its neighboring one. 3) Mitosis is the splitting of the cell to form two identical daughter cells. Meiosis involves recombination of the chromosomes before it can do mitosis, therefore producing several cells, some of which are variegated. Cells that do mitosis and meiosis both perform interphase, but differ afterwards. Both break down the nuclear envelope, both have their chromosomes condense, both have spindle fibers attach to the chromosomes, but because the chromosomes in the cell performing meiosis (Cell 1) line up in homologous pairs rather than single file on the metaphase plate as occurs in Cell 2, the fibers only attach to one side of the kinetochore. Furthermore, while the cells are lined up
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Bio 12 - 2 During synapsis which occurs in prophase I...

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