Part A: Determining relationships between alleles
You decide to conduct a genetic analysis of these mutant lines by crossing each with a pure-breeding wild-type line. The numbers in the F2 indicate the number of progeny in each phenotypic class.
Part B: Crossing the forked and pale mutants
You continue your genetic analysis by crossing the forked and pale mutant lines with each other. The leaves of the F1 are light green (intermediate between pale and wild-type leaves) and forked. The F2 has six phenotypic classes:
You designate the forked mutant allele as F (wild type = f+ ) and the pale mutant allele as p (wild type = P).
Part C: Crossing the forked and twist mutants
You continue your analysis by crossing the forked and twist lines. Your results are as follows:
Part D - Assigning genotypes for codominant alleles
You decide to designate the twist allele as FT to distinguish it from the forked allele F.