Q. Which one of the following is an example of polygenic inheritance ?
A) Flower colour in Mirabilis jalapa
B) Production of male honey bee
C) Pod shape in garden pea
D) Skin colour in humans
Explanation
[Solution from source] Human skin colour is controlled by several genes with additive effects, giving continuous variation; this is polygenic inheritance. Flower colour in Mirabilis jalapa shows incomplete dominance of a single gene. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.