Which of the following statement confirm the law of dominance

Options

A. 3:1 ratio in `F_(2)` generation
B. It is the conclusion of a dihybrid cross
C. Alleles do not show any blending and both characters recovered as such in `F_(2)` generation
D. Alleles of a pair segregate from each other such that gamete receives only one of the two factors

Answer

To solve the question "Which of the following statement confirms the law of dominance?", we will analyze each option based on Mendel's laws of inheritance, particularly focusing on the law of dominance.

### Step-by-Step Solution:

1. **Understanding the Law of Dominance**:
- The law of dominance states that in a heterozygous condition (where two different alleles are present), one allele (the dominant allele) will express its trait while the other allele (the recessive allele) will not show its trait. This leads to a specific phenotypic ratio in the offspring.

2. **Analyzing the Options**:
- **Option 1**: "3 is to 1 ratio in the F2 generation."
- This option refers to the typical phenotypic ratio observed in a monohybrid cross when a dominant trait is crossed with a recessive trait. In the F2 generation, the offspring exhibit a 3:1 ratio of dominant to recessive phenotypes, confirming the law of dominance.

- **Option 2**: "It is the conclusion of a dihybrid cross."
- This option is incorrect because the dihybrid cross pertains to the law of independent assortment, not the law of dominance.

- **Option 3**: "Alleles do not show any blending and both characters recovered as such in the F2 generation."
- This statement relates to the law of independent assortment, which indicates that traits are inherited independently and do not blend. Hence, this does not confirm the law of dominance.

- **Option 4**: "Alleles of a pair segregate from each other such that gametes receive only one of the two factors."
- This option describes the law of segregation, which explains how alleles separate during gamete formation. It does not directly confirm the law of dominance.

3. **Conclusion**:
- The only option that directly confirms the law of dominance is **Option 1: "3 is to 1 ratio in the F2 generation."** This is because the presence of a 3:1 ratio in the F2 generation is a hallmark of the dominance of one allele over another in a monohybrid cross.

### Final Answer:
**Option 1: 3 is to 1 ratio in the F2 generation.**