Q. To determine heterozygousity of a cross, one has to perform

A) Back cross
B) Reciproacal cross
C) Test cross
D) Any of these
Explanation

When F1 hybrid is crossed with its recessive parents, it is called as test cross.By test cross, the herterozygosity and homozygosity of the organism can be tested. The test cross ratio in monohybrid cross is 1 : 1 and in dihybrid cross, ratio wii be 1 : 1 : 1 : 1.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.