06_Mendel - Consequences of Meiosis and Mendelian genetics...

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Consequences of Meiosis and Mendelian genetics (one trait) Di Stilio- Lecture 6-4/5/11
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MITOSIS MEIOSIS Diploid parent cell Chromosome replication Prophase Metaphase Anaphase and Telophase Two diploid daughter cells of mitosis Four haploid daughter cells of meiosis Anaphase I and Telophase I Metaphase I Meiosis II Prophase I Chromosome replication Diploid parent cell
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(b) During meiosis I, tetrads can line up two different ways before the homologs separate. Maternal chromosome Paternal chromosome Allele that contributes to brown eyes Allele that contributes to green eyes An eye-color gene Allele that contributes to black hair A hair-color gene Allele that contributes to red hair Maternal chromosome Paternal chromosome Brown eyes Black hair Green eyes Red hair Brown eyes Red hair Green eyes Black hair OR The Consequences of Meiosis
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Genetic variation is generated by meiosis and fertilization Meiosis and fertilization introduce genetic variation in three ways: – Independent assortment of homologous pairs at metaphase I:
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This note was uploaded on 01/25/2012 for the course BIOC BIOC 405 taught by Professor Brockerhoff during the Spring '09 term at University of Washington.

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06_Mendel - Consequences of Meiosis and Mendelian genetics...

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