A test cross is used to determine if the genotype of a plant with the dominant phenotype is homozygous or heterozygous. If the unknown is homozygous, all of the offspring of the test cross have the __________ phenotype. If the unknown is heterozygous, half of the offspring will have the __________ phenotype.

A) Recessive, Dominant
B) Dominant, Recessive
C) Codominant, Complimentary
D) Dominant, Incompletely Dominant