Question

The genotype of a plant showing the dominant phenotype can be determined by
A. test cross
B. dihybrid cross
C. pedigree analysis
D. back cross

Answer 1

Correct Answer - A
In genetics, a test cross, first introduced by Gregor J Mendel, is used to determine if an individual exhibiting a dominant trait is homozygous or heterozygous for that trait.
More simply, test cross determines the genotypes of an individual with a dominant phenotype. In some sources, the test cross is defined as being a type of back cross between the recessive homozygote and `F_(1)`-generation.