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

Monohybrid cross is defined as "a genetic mix between two individuals who have homozygous genotypes, or genotypes that have completely dominant or completely recessive alleles, which result in opposite phenotypes for a certain genetic trait".

The phenotypic ratio and genotypic ratio for a monohybrid cross comes to 3:1 and 1:2:1.

When two heterozygous individuals undergo monohybrid crossing, F1 generation will have the following probabilities -

Pure dominant homozygous - 25%

Hybrids (heterozygous) - 50%

Pure recessive heterozygous - 25%

Total pure homozygous (dominant + recessive) is 50%