BISC 219/F10: Assignment Series2 Mapping Crosses

Lab 4 Assignment: Mapping the Mutation

At or before the beginning of lab next time, construct a diagram of crosses that you will set up in the Mapping the Mutation part of Series 2. Highlight the progeny that will be used to continue each step of the process of determining the location of the mutation on the chromosome (linkage group) that you determined through linkage testing. Include the expected results (genotype and phenotype) for both the outcross and self-fertilization progeny used in mapping. Construct a narrative description that summarizes the rational for this work as part of your overall Series 2 goals and explains how the results will allow you to determine the location of the mutated gene responsible for the abnormal phenotype you are studying.

Grading Rubric

Assignment 1 Lab 1– 5 points

	At or Above Standard	Below Standard	Possible Points	Points Earned
Diagram of Crosses	All possible cross outcomes diagramed accurately, completely, clearly, and concisely.	One or more possible crosses missing; one or more is inaccurate, information omitted , or did not include accurate predicted ratios of progeny for genotype and phenotype.	2.5	__/2.5
Narrative description of rational for crosses	Constructed a clear, concise, and accurate description of the rational for setting up the crosses described	Rational for crosses missing, inaccurate, partially accurate; contains too much tangential information or is too simplified, is unclear	0.5	__/0.5
Narrative description of Interpretation of Crosses	Constructed a clear, concise, and accurate description of how you will use the crosses to determine the location of the gene mutation responsible for the abnormal phenotype of interest.	Interpretation of crosses missing, inaccurate, partially accurate, or unclear; contains too much tangential information or is too simplified.	2	__/2
Total			5	__/5