1. Helpful Hints for Problem Solving in Genetics

1. Helpful Hints for Problem Solving in Genetics - Helpful...

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Helpful Hints Read the end of chapter ESSENTIAL CONCEPTS – you can do this before reading the chapter – it’ll help focus your attention to important points. The SYNOPSIS & SIGNIFICANT ELEMENTS at the beginning of each chapter in the Study Guide/Solutions Manual are very helpful in distilling the information presented in each chapter. Genetics is all about applying logic to problem solving. There is a good guide to problem solving on p37. Here’s a brief summary: Identify all the facts that the problem gives you. What do you know? What don’t you know? What are you trying to find out? E.g., Rr = pink phenotype… o It’s important to write it all down, because you’re going to use this information to make some deductions! (I know it’s all very exciting.) Do problem after problem – PRACTICE! You may not realize it, but you’ve been working through the basics of solving problems these past few weeks. Now’s the time to start doing the problems at the back of the chapters we’ve covered. EACH CHAPTER HAS A SERIES OF SOLVED PROBLEMS (just before the unanswered questions). Work through these to ensure that you are able to follow the logic involved. However, on its own this is NOT enough. 1. Read through the problem once. 2. Read through the problem again writing down all the information you’ve been given ( e.g., phenotypes/genotypes of parents, offspring, etc.) a. If you’ve been given phenotypes that can be translated into genotypes with the info you’ve been given do so, writing the genotypic information next to the phenotype. b. Assign symbols ( E.g., R or r ) to alleles and then assign these to phenotypes. c. Diagram the crosses!! (If the sex of the individual is important, use male/female symbols under their genotype/phenotype to indicate. You can also use pedigree symbols ( i.e., circles/squares to indicate sex, although these are typically reserved for human pedigrees). d.
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This note was uploaded on 01/10/2010 for the course BIOLOGY biol2040 taught by Professor Tamarakelly during the Fall '09 term at York University.

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1. Helpful Hints for Problem Solving in Genetics - Helpful...

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