In the purple penguin, a series of alleles occurs at the p locus on an autosome. All alleles affect the color of the feathers. pd = dark-purple; pm = medium-purple; pl = light-purple; pvl = very pale-purple. The order of dominance is pd > pm > pl > pvl. If a light-purple female (heterozygous for very pale-purple), is crossed to a dark-purple male (heterozygous for the medium-purple), the ratio of phenotypes expected among the baby penguins would be:
