Which statement about a monohybrid test cross is not true?

a. It tests whether an individual of unknown genotype 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 phenotypic ratio.
d. If the test individual is homozygous, the progeny will have a 3:1 phenotypic ratio.
e. Test cross results are consistent with Mendel's model of inheritance


Answer: d. If the test individual is homozygous, the progeny will have a 3:1 phenotypic ratio.

Biology & Microbiology

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