The phenotypic ratio in the F2 generation of a monohybrid cross is

1. A monohybrid cross follows a single character, such as height in pea. 2. The F1 plants are all of the dominant phenotype. 3. Self pollinating them gives an F2 in the ratio 3:1. 4. The genotypic ratio underneath that phenotype is 1:2:1, which is a different figure. _Source: NCERT Class 12 Biology Ch4 'Principles of Inheritance and Variation'_