In a Mendelian monohybrid cross, the `F_(2)`-generation shows identcal genotypic and phenotypic ratios. What does it tell us about the nature of alleles involved? Justify your answer.

Explanation

### Step-by-Step Text Solution:

1. **Understanding the Monohybrid Cross**: In a Mendelian monohybrid cross, we examine the inheritance of a single trait that is controlled by two alleles. For example, let's consider flower color in snapdragons (Mirabilis jalapa), where red (R) is dominant and white (r) is recessive.

2. **F1 Generation**: When we cross a homozygous red flower (RR) with a homozygous white flower (rr), all the offspring in the F1 generation will have the genotype Rr. However, due to incomplete dominance, the phenotype of the F1 generation will be pink flowers.

3. **F2 Generation**: When we self-pollinate the F1 generation (Rr x Rr), we can use a Punnett square to determine the genotypes of the F2 generation. The possible combinations will be:
- RR (red)
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