EVERYDAY SCIENCE

Detailed explanation-1: -A cross is made between F1 hybrid and recessive parent is called Test cross. In the next generation 50% progeny are heterozygous dominant and 50% progeny are homozygous recessive plants are formed in 1:1 ratio. So, the correct option is ‘1:1’.

Detailed explanation-2: -A test cross is carried out between the F1 generation hybrid and a double recessive parent. This cross helps determine the genotype of the F1 hybrid.

Detailed explanation-3: -In its simplest form, a test cross is an experimental cross of an individual organism of dominant phenotype but unknown genotype and an organism with a homozygous recessive genotype (and phenotype).

Detailed explanation-4: -The cross between the progeny of F1 and the homozygous recessive parent is known as the test cross. The test cross is performed to determine the genotype of a dominant parent if it is a heterozygous or homozygous dominant. Was this answer helpful?