In a typical monohybrid cross the `F_(2)`-population ratio is written as `3:1` for phenotype but expressed as `1:2:1` for genotype. Explain with the help of an exmaple.

Explanation

To explain the difference between the phenotypic ratio of 3:1 and the genotypic ratio of 1:2:1 in a typical monohybrid cross, we can use the example of plant height, where the trait is controlled by a single gene with two alleles: tall (T) and dwarf (t).

### Step-by-Step Solution:

1. **Understanding Monohybrid Cross**:
A monohybrid cross involves a single trait that is controlled by one gene with two contrasting alleles. In our example, we are looking at the trait of plant height, where:
- T (tall) is the dominant allele.
- t (dwarf) is the recessive allele.
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