Chapter 12 � Inheritance Patterns

Chapter 12 � Inheritance Patterns - and are rejoined...

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Chapter 12 – Inheritance Patterns 01/03/2008 23:38:00 Heredity occurs within  species , traits are passed from parents to offspring = inheritance Mendel’s experiment Uses peas because they were small, easy to grow, male/female parts  together. o Can self-fertilize, so expect to see segregating traits in off-spring Mendel performs monohybrid crosses and quantizes results Develops five-element model for inheritance Segregation : the two allele for a gene segregate during gamete formation 
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Unformatted text preview: and are rejoined at random, one from each parent, during fertilization In monohybrid crossing, traits observed in F1 generation are dominant. Both traits are seen in F2 generation. Mendel was lucky, his traits were effected by one gene only. Some traits may be affected by many genes ( polygenic ). Some genes may affect many traits ( pleiotropy ). 01/03/2008 23:38:00 01/03/2008 23:38:00...
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Chapter 12 � Inheritance Patterns - and are rejoined...

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