Regarding the Test Cross, which statements are accurate?
a. A Test Cross is performed to determine the genotype of a plant showing a recessive phenotype.
b. In a typical Test Cross, the organism showing a dominant phenotype (unknown genotype) is crossed with the recessive parent.
c. If the result of a Test Cross yields all progeny showing the dominant phenotype, the unknown flower is heterozygous.
d. If the Test Cross yields a 1:1 ratio of dominant to recessive phenotypes, the unknown flower is heterozygous.