Q. Test cross involves
A) Crossing between two genotypes with recessive trait
B) Crossing between two $F_{1}$-hybrids
C) Crossing the $F_{1}$-hybrid with a double recessive genotype
D) Crossing between two genotypes with dominant trait
Explanation
The test cross involves the crossing of $F_{1}$hybrid with a double recessive genotypic parent. By test cross, the heterozygocity and homozygocity of the organism can be tested.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.