Q. A polygenic trait is controlled by 3 genes A, B and C. In a cross AaBbCc$\times AaBbCc$, the phenotypic ratio of the offsprings was observed as 1 : 6 : x : 20 : x : 6 : 1. What is the possible value of x?
A) 3
B) 9
C) 15
D) 25
Explanation
The correct answer is Option A: 3.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.