Test Cross

Test Cross:  Cross between an individual of unknown genotype (hybrid) with an individual which is homozygous for recessive trait is test cross.


  1. Important to know about the unknown individual.
  2. Important tool of genetics.

Conclusion: If we get 5% dominant and 50% recessive character, then unknown individual must be heterozygous.

Conclusion:- If we get all dominant character, then the unknown individual must be Homozygous for dominated character.

Related Keywords
12    PMT    Biology    Principles of Inheritance and Variation    Test Cross