State the Mendelian principle which can be derived from a dihybrid cross and not from monohybrid cross.

Explanation

**Step-by-Step Solution:**

1. **Understanding Dihybrid and Monohybrid Crosses:**
- A monohybrid cross involves the study of a single trait (e.g., height in pea plants: tall vs. dwarf).
- A dihybrid cross involves the study of two different traits simultaneously (e.g., seed shape: round vs. wrinkled and seed color: yellow vs. green).

2. **Identifying the Mendelian Principles:**
- From a monohybrid cross, we can derive the Law of Segregation, which states that alleles for a trait separate during gamete formation.
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