Question

Test cross is a back cross but back cross is not a test cross . Explain

Answer 1

Back cross is a cross of hybrid with one of its parents or any individual genetically similar to its parent in order to achieve offspring with genetic identity closer to that of the parent whereas test cross is a type of back cross between the recessive homozygote and F1 generation.

Answer 2

A back cross refers to the cross that takes place between the progeny of the F1 generation and one of the parents, regardless of whether the parent the dominant one or the recessive one.

But on the other hand, a test cross specifically refers to the cross that takes place between the progeny of the F1 generation and the recessive parent.

Therefore, it can be concluded that that a test cross is a back cross but a back cross is not a test cross.