Study of nuclear cytology is

Options

A. Neurology
B. Mycology
C. Rhinology
D. Karyology.

Answer

To answer the question "Study of nuclear cytology is," we will analyze the options provided and determine which one is correct.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the study that is specifically related to nuclear cytology. Nuclear cytology refers to the study of the structure and function of the nucleus in cells.

2. **Analyzing the Options**:
- **Option A: Neurology**: This is the study of the nervous system, particularly the brain and neurons. It does not relate to the nucleus or cytology.
- **Option B: Mycology**: This is the study of fungi. Again, this does not pertain to nuclear structures or cytology.
- **Option C: Rhinology**: This is the study of the nose and sinuses. It is unrelated to cellular structures or the nucleus.
- **Option D: Karyology**: This is the study of the structure and function of the nucleus and chromosomes. It directly relates to nuclear cytology.

3. **Identifying the Correct Answer**: Since karyology deals specifically with the nucleus and its components, it is the correct answer. Therefore, the study of nuclear cytology is karyology.

4. **Final Conclusion**: The correct answer to the question "Study of nuclear cytology is" is **Karyology**.