LabBench Activity

Analysis of Results

In the laboratory you breed your flies and analyze the results of the breeding through the F2 generation. The exercises below are designed to help you understand the patterns of inheritance in your fly populations.

1. Reversing the Procedure
One way to discover patterns of inheritance is by working backward. In other words, you determine the genotype of the original parental generation by careful analysis of the F1 and F2 generations. Let's examine two sample cases that trace eye color. For each, look at the data chart with the number of male and female flies exhibiting each eye color. Then answer the questions.