Albinism in corn show :-

Options

A. Pathogenic effect
B. Deficiency of light
C. Deficiency of minerals
D. lethal gene effect

Answer

### Step-by-Step Solution:

1. **Understand Albinism**:
- Albinism is a genetic condition characterized by the absence or low levels of a pigment. In the case of corn, it refers specifically to the absence of chlorophyll, which is necessary for photosynthesis.

2. **Identify the Role of Chlorophyll**:
- Chlorophyll is crucial for photosynthesis, the process by which plants convert light energy into chemical energy to produce food. Without chlorophyll, a plant cannot perform photosynthesis effectively.

3. **Consequences of Albinism in Corn**:
- When corn exhibits albinism, it lacks chlorophyll, leading to an inability to photosynthesize. This results in the plant not being able to produce food, which can ultimately lead to its death.

4. **Analyze the Options Provided**:
- The question provides four options regarding what albinism in corn shows:
- **Option A**: Pathogenic effect
- **Option B**: Deficiency of life
- **Option C**: Deficiency of minerals
- **Option D**: Lethal gene effect

5. **Evaluate Each Option**:
- **Option A (Pathogenic effect)**: Incorrect, as albinism is not caused by pathogens like bacteria or viruses.
- **Option B (Deficiency of life)**: Incorrect, as this does not accurately describe the genetic basis of albinism.
- **Option C (Deficiency of minerals)**: Incorrect, as albinism is not due to mineral deficiency.
- **Option D (Lethal gene effect)**: Correct, as the mutation in the gene responsible for chlorophyll production can lead to the death of the plant.

6. **Conclusion**:
- The correct answer is **Option D: Lethal gene effect**. Albinism in corn is a result of a lethal gene mutation that affects chlorophyll production, leading to the plant's inability to survive.