Discussion Week 3

Discussion Week 3 - Mitosis/Meiosis Separation of...

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Mitosis/Meiosis Separation of Chromosomes Gamete formation Aneuploidy Mitosis- Cell division in which identical daughter cells are created (2n 2n) o XX homologous chromosomes. X- top end= sister chromatids XX center= non sister chromatids center points= centromere General scheme in which meiosis and mitosis takes place o N=23 (haploid number in number 2n=46 Sperm(n)+egg(n) Combine via fertilization Forms zygote 2n (diploid) o Mature and become to child via Mitosis Becomes adult via Mitosis Produce gametes (sperm(n) +egg(n) via Meiosis 4 Different phases o G1 Cell growth G0= resting stage (not all the time) o S Chromosomes duplicate o G2 Further preparation for division o Cytokinesis Pinching off into two cells Formation of two cells Parent Cell o Prophase Chromosomes condense Mitotic spindle will form o Prometaphase Nuclear envelope breaks o Metaphase Chromosomes line up on metaphase plate o
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This note was uploaded on 01/17/2012 for the course HILD 100 taught by Professor Lee during the Spring '11 term at UCLA.

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Discussion Week 3 - Mitosis/Meiosis Separation of...

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