What is correct regarding albinism?

Options

A. Albinism is genetic and etiolation is physiological
B. Etiolation is genetic and albinism is physiological
C. Etiolation is irreversible
D. Etiolation and albinism are synonyms.

Answer

### Step-by-Step Solution:

1. **Understanding Albinism**: Albinism is a genetic condition that results in the absence of pigment in an organism, leading to a lack of color in the skin, hair, and eyes of animals, and in the leaves of plants.

2. **Genetic Nature of Albinism**: Albinism is caused by mutations in genes responsible for the production of melanin or other pigments. This means that it is inherited and can be passed down from parents to offspring.

3. **Comparison with Etiolation**: Etiolation is a physiological response of plants to low light conditions. It results in the yellowing of leaves due to the degradation of chlorophyll, which is the green pigment necessary for photosynthesis.

4. **Key Differences**: The key difference between albinism and etiolation is that albinism is a genetic phenomenon, while etiolation is a physiological response to environmental conditions (specifically, lack of light).

5. **Conclusion**: Therefore, the correct statement regarding albinism is that it is a genetic phenomenon, distinguishing it from etiolation, which is a physiological phenomenon.