Ans: (1) A Test cross can be used to find out the genotype of any plant that shows dominant characteristics.
(2) Whether the plant is homozygous or heterozygous can be understood by performing test cross.
(3) Test cross is used to introduce useful recessive traits in the hybrids of self-pollinated plants.
(4) Test cross is a quicker method to improve the variety of crop plants and thus it is useful for breeders and geneticists.
(5) A test cross can be used for verifying the laws of inheritance.
