Mendel 3 - Mechanisms of Inheritance III A Re-cap: Mitosis...

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1 Mechanisms of Inheritance III A Re-cap: Mitosis • “normal” cell division • Produces 2 daughter cells identical to parent • Daughter cells are diploid (2n) Meiosis • Gamete production • Produces 4 daughter cells, differing from • Daughter cells are haploid (1n) Other key processes in meiosis creating genetic diversity among gametes: • Homologous chromosomes separate – Gamete may have chromosome from either the parent’s mother or father
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2 Homologous chromosomes separated Mendel’s 1 st law: “Law of segregation of alleles” Mendel’s first law: “Law of segregation of alleles” A a a a A A Other key processes in meiosis creating genetic diversity among gametes: • Homologous chromosomes separate – Gamete may have chromosome from either the parent’s mother or father • Homologous chromosomes assort into the gametes independently
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3 Homologous chromosomes assort independently: Mendel’s 2 nd Law: Law of independent assortment of genes 2 hypotheses: Blending Inheritance Particulate Inheritance
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This note was uploaded on 11/08/2009 for the course HUMBIO 2A taught by Professor Boggs,c;durham,w during the Spring '08 term at Stanford.

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Mendel 3 - Mechanisms of Inheritance III A Re-cap: Mitosis...

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