Genetics: Analysis and Principles 5th Edition by Robert Brooker

Exercise 9

Two genes, designated A and B , are located 10 mu from each other. A third gene, designated C , is located 15 mu from B and 5 mu from A. The parental generation consisting of AA bb CC and aa BB cc individuals were crossed to each other. The F 1 heterozygotes were then testcrossed to aa bb cc individuals. If we assume no double crossovers occur in this region, what percentage of offspring would you expect with the following genotypes
a. Aa Bb Cc
B. aa Bb Cc
C. Aa bb cc