The nheritance of flower colour in the dog flower (snapdragon or antirrhium sp./) is a good example of

Options

A. codominance
B. incomplete dominance
C. multiple allele
D. complete dominance

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the inheritance pattern of flower color in the dog flower (snapdragon or Antirrhinum species).

2. **Identifying the Options**: The options given are:
- Co-dominance
- Incomplete dominance
- Multiple alleles
- Complete dominance

3. **Analyzing Flower Color Inheritance in Snapdragon**:
- In snapdragons, when red-flowered plants are crossed with white-flowered plants, the resulting offspring (F1 generation) exhibit a pink flower color.
- This indicates that neither the red nor the white allele is completely dominant over the other.

4. **Defining Incomplete Dominance**:
- Incomplete dominance occurs when the phenotype of the heterozygote (F1 generation) is intermediate between the phenotypes of the two homozygotes (the parents).
- In this case, the red (R) and white (r) alleles blend to produce pink (Rr) flowers.

5. **Conclusion**: Based on the analysis, the inheritance of flower color in snapdragons is a good example of **incomplete dominance**.

6. **Final Answer**: The inheritance of flower color in the dog flower (snapdragon) is a good example of **incomplete dominance**.

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