Genetic Corn Ears
Visual Examples Of Genetics At Work
Dried and Shrink-wrapped ears of corn illustrate naturally occurring Phenotype Ratios of genetic crosses.
3:1 Purple: Yellow: An F2 ear resulting in a P1 having the genotypes R/R and r/r.
3:1 Purple : White :An F2 result of a cross between parental Purple and White. A Single hybrid character with Dominance and Segregation.
3:1 Yellow White : An F2 ear crossed from a parental Yellow and White. A Single hybrid character with Dominance and Segregation.
1:1:1:1 Purple:White:Smooth:Sweet: A Dihybrid back cross of a plant heterozygous for coloration and smooth characteristics.
9:3:3:1 Purple:White:Smooth:Sweet: an F2 from a parental Purple:Smooth:White: Sweet. Illustrates segregation of two characters.