Mendel's last law is

Options

A. segregation
B. dominance
C. independent assortment
D. polygenic inheritance

Explanation

**Step-by-Step Solution:**

1. **Understanding Mendel's Laws**: Mendel proposed several laws of inheritance based on his experiments with pea plants. The first step is to recognize that there are three primary laws he formulated.

2. **Law of Dominance**: The first law is the Law of Dominance, which states that in a pair of alleles, one may dominate the other. This law explains that when two different alleles are present, the dominant allele will express its trait while the recessive allele will not. However, this is not Mendel's last law.

3. **Law of Segregation**: The second law is the Law of Segregation. This law indicates that alleles segregate independently during gamete formation, meaning that each gamete carries only one allele for each trait. This law is based on monohybrid crosses and shows that traits do not blend. However, this is also not the last law.

4. **Law of Independent Assortment**: The third law is the Law of Independent Assortment, which is Mendel's last law. This law states that alleles for different traits segregate independently of one another during gamete formation. For example, the inheritance of seed shape (tallness) and seed color occurs independently, leading to various combinations in the offspring. This law is illustrated by a phenotypic ratio of 9:3:3:1 in dihybrid crosses.

5. **Conclusion**: Based on the above understanding, Mendel's last law is the Law of Independent Assortment.

**Final Answer**: Mendel's last law is the Law of Independent Assortment.

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