The following three recessive genes are found in corn:
bt1, brittle endosperm.
g117 glossy leaf and
rgdl, ragged seedling. A trihybrid of
unknown origin is testcrossed producing the following
offsprings:
Brittle, glossy, ragged      
357
Brittle
glossy                    
74
Ragged                             
66
Glossy                              
79
Wildtype                              
343
Brittle
ragged           
             61
Glossy
ragged                       
11
Brittle                                    
9
What are the genotypes and phenotypes of the original
parents?
Diagram the linkage relationship in the F1.
Determine the gene order.
Calculate the amount of recombination observed between the...