Taxonomy based on determination of genetic relationship is

Options

A. Cytotaxonomy
B. Numerical taxonomy
C. Biochemical taxonomy
D. Phylogentic taxonomy

Answer

To solve the question "Taxonomy based on determination of genetic relationship is", we need to analyze the provided options one by one to identify which one relates specifically to genetic relationships among organisms.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the type of taxonomy that focuses on genetic relationships among organisms.

2. **Analyze the Options**:
- **Option A: Cytotaxonomy**: This is the classification of organisms based on the structure of their chromosomes. While it involves genetic material, it does not directly assess genetic relationships.
- **Option B: Numerical Taxonomy**: This approach involves a quantitative assessment of similarities and differences among organisms. It does not specifically focus on genetic relationships.
- **Option C: Biochemical Taxonomy**: This type of taxonomy analyzes the chemical constituents in the cells of organisms. It is more about biochemical properties rather than direct genetic relationships.
- **Option D: Phylogenetic Taxonomy**: This classification is based on the evolutionary relationships and genetic connections between organisms. It focuses on how species are related through common ancestry and genetic information.

3. **Identify the Correct Answer**: Based on the analysis, the option that specifically relates to the determination of genetic relationships is **Option D: Phylogenetic Taxonomy**.

### Final Answer:
The correct answer is **D: Phylogenetic Taxonomy**.