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Alee's SI Worksheet for October 20 2009

Alee's SI Worksheet for October 20 2009 - BSC 2010 Alee's...

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BSC 2010 – Alee’s SI Review Sessions  Name: ________________________________ Tuesday, October 20, 2009 Complicated Problems Though they appear daunting, these problems can be boiled down to basic crosses and  fundamental concepts.  YOU can do these problems.  Just use the basic knowledge you know,  approach them one step at a time and practice A LOT.  Steps to solving more complicated genetics problems: 1. Determine key: Define each allele and their combinations. a. Is their complete dominance? Codominance? Incomplete dominance? Epistasis?  Linked? Autosomal? i. This may vary amongst genes, so it is important that each gene is  considered individually. b. Many of these complicated crosses are looking at multiple genes at once.  Determine the key for each of these genes, one at a time.  2. Identify genotypes of parental generation a. Use key and base of question to determine their genotypes at each gene.
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