Apperance of hidden character in some progeny of `F_(2)` population indicates

Options

A. Law of purity of gametes
B. Law of independent assortment
C. Law of dominance
D. None of the above

Answer

To solve the question regarding the appearance of hidden characters in some progeny of the F2 population, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Generations**:
- The question refers to the F2 generation, which is derived from the selfing of the F1 generation. In a typical monohybrid cross, the P generation consists of two homozygous parents (e.g., tall and dwarf plants).

2. **Identify the F1 Generation**:
- When the two homozygous parents are crossed, all offspring in the F1 generation will exhibit the dominant trait (e.g., all tall plants). The recessive trait (e.g., dwarf) is not expressed in this generation.

3. **Selfing the F1 Generation**:
- When the F1 generation is self-fertilized (F1 x F1), the resulting F2 generation will show a mix of both traits.

4. **Determine the Ratios in F2 Generation**:
- In the F2 generation, the phenotypic ratio of tall to dwarf plants is typically 3:1. This indicates that out of four plants, three will be tall (dominant) and one will be dwarf (recessive).

5. **Identify the Hidden Character**:
- The appearance of the dwarf plants in the F2 generation indicates that the recessive trait, which was hidden in the F1 generation, has reappeared. This phenomenon is crucial for understanding genetic inheritance.

6. **Connect to Mendel’s Laws**:
- The appearance of the hidden character in the F2 generation is explained by the **Law of Purity of Gametes**. This law states that alleles segregate during gamete formation, and the recessive allele can reappear in the offspring if it is present in the genotype.

7. **Conclusion**:
- Therefore, the appearance of the hidden character in some progeny of the F2 population indicates the **Law of Purity of Gametes**.

### Final Answer:
The appearance of hidden character in some progeny of F2 population indicates the **Law of Purity of Gametes**.

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