63. Purple color in plant is dominant. Green color in plant is recessive. If we crossed a purple plant to a green plant, the first generation will be 50% purple and 50% green. What do you conclude from this result?
A) the parental purple plant was heterozygous for the trait
B) the parental purple plant was homozygous for the trait
C) this outcome is impossible to occur
D) the parental green plant is hybrid