04_17_07 - Eukaryotic Cell Division cell cycle G1, S, G2,...

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Eukaryotic Cell Division cell cycle anaphase meiosis I dynein meiosis II interphase sister chromatids crossing over chromosome telophase recombination chromatid cytokinesis synapsis mitosis asexual reproduction sexual reproduction prophase homologs heteroduplex DNA spindle fibers homologous chromosomes Holliday junction kinetochore diploid metaphase haploid 1) 2) 3) 4) 5) 6) 7) 8) Current Model for Homologous Recombination in Most Organisms Adapted from “Making crossovers during meiosis” by M.C. Whitby. Biochemical Society Transactions 33 (6) 1451-1455, 2005. 3’ 3’ 3’ 3’   S G 2 G 1 M R P H A S E E T N I DNA S ynthesis (replication) G ap 1 Growth, protein synthesis G ap 2 Growth, protein synthesis Nuclear      
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it can be one chromosomes with 2 chromtids, as along as the two chromtids are connected at the centromere they are called a chromosome. In mitosis the chromosomes separate to 2 chromosomes as the two chromtids separates. In the prophase the spindle fiber attaches to the centromere. The spindle fiber from one pole will attach to one kineticore of a chromosome and the other kineticore will attach to spindle fiber from the other pole. The attachment process is completely random but if the other kineticore isn’t attached to
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04_17_07 - Eukaryotic Cell Division cell cycle G1, S, G2,...

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