Q. In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in F1 generation?
A) 9 : 1
B) 1 : 3
C) 3 : 1
D) 50 : 50
Explanation
[Solution from source] Yy x yy gives half Yy (yellow) and half yy (green), a 1:1 or 50:50 ratio. A 3:1 ratio would need both parents to be heterozygous. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.