Mendel found that reciprocal crosses yielded indentical results. From that he concluded

Options

A. Sex plays a role in deciding dominance of a trait
B. There is no dominance of any trait
C. There is independent assortment of the trait
D. Sex has no influence on the dominance of the trait.

Answer

### Step-by-Step Solution:

1. **Understanding Reciprocal Crosses**: Mendel performed experiments using reciprocal crosses, which involve switching the roles of male and female parents while keeping the traits being studied the same. For example, if one cross involves a tall plant (TT) as the male and a short plant (tt) as the female, the reciprocal cross would involve the tall plant (TT) as the female and the short plant (tt) as the male.

2. **Conducting the Crosses**: In Mendel's experiments, he found that regardless of which parent was male or female, the offspring produced from the crosses had the same genetic makeup. For instance, in the first cross (TT x tt), the offspring would be Tt (tall). In the reciprocal cross (tt x TT), the offspring would also be Tt (tall).

3. **Identical Results**: Mendel observed that the results of these reciprocal crosses were identical. This means that the traits inherited by the offspring did not depend on the sex of the parent from which they were inherited.

4. **Conclusion**: From these observations, Mendel concluded that the sex of the parent does not influence the dominance of a trait. This was a significant finding because it suggested that traits are inherited independently of the parent's gender.

5. **Implication of Findings**: Mendel's conclusion laid the groundwork for the understanding of inheritance patterns, leading to the formulation of the laws of inheritance, including the law of segregation and the law of independent assortment.