Which Statement About a Test Cross Is Not True

Multiple Choice

Which statement about a test cross is not true?

A) It tests whether an unknown individual is homozygous or heterozygous.
B) The test individual is crossed with a homozygous recessive individual.
C) If the test individual is heterozygous, the progeny will have a 1:1 ratio.
D) If the test individual is homozygous, the progeny will have a 3:1 ratio.
E) Test cross results are consistent with Mendel's model of inheritance for unlinked genes.