MCQ : The ratio of phenotype in the monohybrid cross of Mendel was (a) 1 : 3 (b) 3 : 2: 1 (c) 1: 2 (d) 3 : 1

3: 1.

Explanation

In a monohybrid cross, the phenotypic ratio is 3 : 1. This means that 3 out of 4 offspring will express the dominant trait, while 1 out of 4 will express the recessive trait. The recessive trait is only expressed when both copies of the gene are recessive.