Question

What type of cross has to be conducted to find out whether the plant is homozygous dominant or heterozygous dominant?

• A. Test cross
• B. Back cross
• C. Out cross
• D. All of the above

Answer 1

The correct option is A Test cross

A test cross has to be conducted to find out whether the plant is homozygous dominant or heterozygous dominant.

In test cross, the plant showing dominant phenotype for a particular character (and whose genotype is to be determined) is crossed with the recessive individual for the same character.

Back cross refers to the crossing of $F_1$ hybrid with any of its parents.

Crossing of $F_1$ hybrid with the dominant parent is called out cross.