Which of the following principle was not proposed by Mendel ?

Options

A. Dominance
B. Blending inheritance
C. Independent assortment
D. Segregation

Answer

To determine which principle was not proposed by Mendel, we will analyze the options provided and compare them with Mendel's established laws of inheritance.

### Step-by-Step Solution:

1. **Identify Mendel's Laws**:
- Mendel proposed three fundamental laws of inheritance based on his experiments with garden peas:
- **Law of Dominance**: This law states that in a heterozygous condition, the dominant allele will mask the effect of the recessive allele.
- **Law of Segregation**: This law states that during gamete formation, the two alleles for a trait segregate from each other so that each gamete carries only one allele for each trait.
- **Law of Independent Assortment**: This law states that alleles of different genes assort independently of one another during gamete formation.

2. **Review the Options**:
- We need to look at the options provided in the question and identify which one does not align with Mendel's laws. The option that is often mentioned as not being part of Mendel's principles is **Blending Inheritance**.

3. **Understanding Blending Inheritance**:
- Blending inheritance suggests that offspring are a smooth blend of parental traits. This concept implies that traits mix together, which contradicts Mendel's findings that traits are inherited as distinct units (alleles) and do not blend.

4. **Conclusion**:
- Since Blending Inheritance does not align with Mendel's principles and is not one of the laws he proposed, we conclude that this is the principle not proposed by Mendel.

### Final Answer:
**Blending Inheritance** is the principle that was not proposed by Mendel.

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