Q. Pure tall plants are crossed with pure dwarf plants. In the $F_{1}$-generation, all plants were tall. These tall plants of $F_{1}$-generation were selfed and the ratio of tall to dwarf plants obtained was 3: 1. This is called

A) Dominance
B) Inheritance
C) Codominance
D) heredity
Explanation

If a character is expressed equally in the homozygous and heterozygous conditions, it is called dominant and the other character is said to be recessive. In given question, ‘Tall’ character is dominant over ‘dwarf’, hence, the cross shows dominance and segregation of traits.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.