Which of the following material is good to understant incomplete dominance

Options

A. Sweet Pea
B. Cattle
C. Snapdrogon
D. Kernel colour in wheat

Answer

To understand the concept of incomplete dominance, we can analyze the characteristics of different plant species and how they exhibit this genetic phenomenon. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the Concept of Incomplete Dominance
Incomplete dominance occurs when the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes. This means that neither allele is completely dominant over the other, resulting in a blending of traits.

### Step 2: Identify Suitable Organisms
Among various organisms, we need to find one that clearly demonstrates incomplete dominance. The question provides options, and we need to evaluate them based on their genetic expression.

### Step 3: Evaluate the Options
1. **Snapdragon (Mirabilis Jalapa)**: This plant is known for its flower color inheritance. When red-flowered (RR) and white-flowered (rr) snapdragons are crossed, the F1 generation produces pink flowers (Rr), demonstrating incomplete dominance. In the F2 generation, the ratio of red to pink to white flowers is 1:2:1.

2. **Sweet Pea**: This plant exhibits gene interaction rather than incomplete dominance, making it an unsuitable choice.

3. **Cattle Color**: Cattle color inheritance shows co-dominance, where both alleles are expressed distinctly, thus it does not represent incomplete dominance.

4. **Kernel Color in Wheat**: This trait is an example of polygenic inheritance, which involves multiple genes, and does not illustrate incomplete dominance.

### Step 4: Conclusion
Based on the evaluations, the best material to understand incomplete dominance is the **Snapdragon (Mirabilis Jalapa)**, as it clearly shows the blending of traits in flower color.

### Final Answer
The correct answer is **Snapdragon (Mirabilis Jalapa)**.

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