Question: What is the expected phenotypic ratio in the offspring of a monohybrid cross between two heterozygous plants?

Options:

1. 1:1
2. 3:1
3. 9:3:3:1
4. 1:2:1

Correct Answer: 3:1

Solution:

In a monohybrid cross (Aa x Aa), the expected phenotypic ratio of the offspring is 3:1, where 3 exhibit the dominant trait and 1 exhibits the recessive trait.