A Test Cross

Multiple Choice

A test cross

A) is used to determine if an organism that is displaying a dominant trait is heterozygous or homozygous for that trait.
B) is used to determine if an organism that is displaying a recessive trait is heterozygous or homozygous for that trait.
C) causes the loss of hybrid vigor.
D) results in an F₂ generation with a phenotypic ratio of ³/₄ dominant to ¹/₄ recessive.
E) results in the same alleles being transferred from generation to generation.