Zoology - Principles of Inheritance and Variation Question with Solution | TestHub

Test cross is a process to examine and identify whether the organism is heterozygous or not. In it, the organisms are crossed with the recessive homozygous as it will ensure the expression of the dominant character in heterozygous form for F1 generation enabling us to know the zygosity. The ratio obtained in F1 generation after crossing the heterozygous individual with recessive homozygous individual is$1:1$.

Phenotypic ratio of a typical monohybrid ratio is 3:1 and the genotypic ratio for the same is$1:2:1$