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Exploring Complex Genetics: Skin Color and Trait Variations

Dive into the complexities of inheritance beyond Mendelian genetics, focusing on multiple genes affecting traits like skin color. Learn through gene crosses and probabilities.

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Exploring Complex Genetics: Skin Color and Trait Variations

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  1. Warmup10/30/14 If combining genes only gives us 4 phenotypes, how can we explain something like skin color, of which there are many more than 4 phenotypes? Objective Tonight’s Homework To learn how multiple genes can combine at once None

  2. Multiple Gene Crosses Look at the table on page 135. Tell me the chance of getting a chicken with a “single comb” if… - Both parents are “RRPP” - One parent is “RRPP” and the other is “rrpp” - Both parents are “RrPp” - One parent is “RrPp” and the other is “rrpp” - Both parents are “rrPp” - Both parents are “rrpp” Do all the mixes shown above again, but this time tell me the probability that the chicken will have a “rose comb”.

  3. Exit Question #27 If the parents are “IAi” and “ii”, what is the probability of one of their offspring having AB blood? a) 0% b) 25% c) 50% d) 75% e) 100% f) Not enough information

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