Example of association of characters in heredity.
Purple flower colour is dominant to red in the sweet pea, and the old-fashioned erect form of standard with the central notch is dominant to the hooded. In families where these characters are involved, the nature of the F2 generation depends upon the manner in which the cross was made.
(A) When one dominant character goes in with each parent.
[H] Not yet found in this mating, but probably occurs very rarely.
(B) When the two dominants enter, from one parent, they tend to remain associated in the F2 generation.
