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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