Q. Ratio of progeny, when a red coloured heterozygote is crossed with a white coloured plant in which red colour is dominant to white colour
A) 3 : 1
B) 1 : 1
C) 1 : 2 : 1
D) 9 : 3 : 3 : 1
Explanation
The cross of heterozygous dominant with its recessive parent is called test cross. The test cross gives 1 : 1 ratio in monohybrid condition, whereas 1 : 1 : 1 : 1 in dihybrid condition.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.