The plant blue-eyed Mary grows on Vancouver Island. The population is ‘dimorphic’ for purple blotches on the leaves. (There are two phenotypes - plants with blotches, and plants without blotches). A plant with blotched leaves, which had not yet flowered, was dug up and taken to a laboratory, where it was allowed to self-pollinate and produce seeds. These seeds were collected and grown into offspring plants. One randomly...