1. Tardigrade
  2. Question
  3. Biology
  4. A dihybrid for qualitative trait is crossed with homozygous recessive individual of its type, the phenotypic ratio is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A dihybrid for qualitative trait is crossed with homozygous recessive individual of its type, the phenotypic ratio is

Principles of Inheritance and Variation

Solution:

It is an example of test cross. A double heterozygous on test cross yields a ratio of $1: 1: 1: 1 .$ Such a test cross is also called dihybrid test cross. It is shown below by crossing dihybrid $RrYy$ with homozygous recessive $rryy.$
image