Law of independent assortment of Mendel was proved by :-

Options

A. Monohybrid cross
B. Reciprocal cross
C. Dihybrid cross
D. Back cross

Answer

**Step-by-Step Solution:**

1. **Understanding Mendel's Laws**: Gregor Mendel, the father of genetics, proposed several laws based on his experiments with pea plants. Among these is the Law of Independent Assortment, which states that alleles for different traits are distributed to gametes independently of one another.

2. **Types of Genetic Crosses**:
- **Monohybrid Cross**: This involves a single trait and examines the inheritance of one characteristic (e.g., flower color).
- **Reciprocal Cross**: This is a cross where the traits of the parents are reversed to see if the results are consistent.
- **Dihybrid Cross**: This involves two traits and examines the inheritance of two characteristics simultaneously (e.g., flower color and seed shape).
- **Back Cross**: This is a cross between a hybrid and one of its parents or an individual genetically similar to its parents.

3. **Identifying the Correct Cross**: The Law of Independent Assortment can best be demonstrated through a dihybrid cross. In a dihybrid cross, the inheritance of one trait does not affect the inheritance of another trait, which is a direct illustration of the law.

4. **Phenotypic Ratio**: When performing a dihybrid cross, the expected phenotypic ratio of the offspring is 9:3:3:1. This ratio supports the idea that the traits assort independently.

5. **Conclusion**: Based on the understanding of these crosses, the Law of Independent Assortment was proved by the dihybrid cross.

**Final Answer**: The Law of Independent Assortment of Mendel was proved by the **Dihybrid Cross**.

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