Q. Which one of the following cannot be explained on the basis of Mendel’s Law of Dominance?
A) Factors occur in pairs
B) The discrete unit controlling a particular character is called a factor
C) Out of one pair of factors one is dominant, and the other recessive
D) Alleles do not show any blending and both the characters recover as such in F₂ generation
Explanation
[Solution from source] The return of both parental traits unchanged in the F₂, without blending, is explained by the Law of Segregation (purity of gametes), not by the Law of Dominance. Paired factors and one dominant factor masking a recessive one are the ideas behind dominance. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.