Q. Test cross is
A) Recessive $F_{1}$-plant crosses with dominant $F_{2}$-plant
B) Recessive $F_{2}$-plant crosses with dominant $F_{3}$-plant
C) Dominant $F_{2}$-plant crosses with recessive parent plants
D) Dominant $F_{2}$-plant crosses with heterozygous parent plants
Explanation
Test cross is a cross in which the dominant $F_{1}$-plant crosses with the homozygous recessive parents plant. Crossing of $F_{1}$ (dominant phenotype) to any one of the parent called back cross and when phenotype of crossing parent is recessive than this is called test cross. The progeny of such cross can easily be analysed to predict the genotype of test organism [image:5c_image40.png]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.