New systematics based on genetic interrelationship is

Options

A. Chemotaxonomy
B. Cytotaxonomy
C. Numerical Taxonomy
D. Experimental Taxonomy

Answer

### Step-by-Step Solution:

1. **Understanding New Systematics**: New systematics, also known as biosystematics, is a classification system that takes into account various aspects of organisms, including genetic interrelationships.

2. **Historical Context**: The term "biosystematics" was introduced by Julian Huxley, who advocated for a broader approach to classification than traditional methods.

3. **Components of Classification**: Huxley emphasized that classification should not only rely on morphological characteristics but should also incorporate biochemical, anatomical, physiological, and genetic information.

4. **Types of Taxonomy**: The question presents four options: chemotaxonomy, cytotaxonomy, numerical taxonomy, and experimental taxonomy. Understanding these terms is crucial:
- **Chemotaxonomy**: Classification based on the chemical composition of organisms.
- **Cytotaxonomy**: Classification based on cytological features, such as chromosome number and structure.
- **Numerical Taxonomy**: A method that uses statistical techniques to classify organisms based on multiple characteristics.
- **Experimental Taxonomy**: This approach incorporates experimental data and genetic interrelationships into the classification process.

5. **Identifying the Correct Option**: Since the question specifically asks about new systematics based on genetic interrelationships, the most appropriate term from the options provided is "experimental taxonomy." This is because it emphasizes the importance of experimental data and genetic information in classification.

6. **Conclusion**: Therefore, the correct answer to the question is **experimental taxonomy**.