Aneuplody is the term applied for the

Options

A. Gene mutation
B. chromosomal mutation
C. Crhromosomal mutations involving the addition or loss of one or more chromoso9mes
D. Chromosomal mutation involving the addition of one or more complete set of chromosomes

Answer

### Step-by-Step Solution

1. **Understanding the Term "Aneuploidy":**
- Aneuploidy refers to a condition where there is an abnormal number of chromosomes in a cell. This can occur due to the addition or loss of one or more chromosomes.

2. **Identifying Chromosomal Mutations:**
- Chromosomal mutations can be categorized into different types. Aneuploidy is specifically a type of chromosomal mutation.

3. **Differentiating Between Types of Chromosomal Mutations:**
- There are two main types of chromosomal mutations:
- **Aneuploidy:** Involves the gain or loss of individual chromosomes.
- **Euploidy:** Involves the gain or loss of complete sets of chromosomes.

4. **Conclusion:**
- Based on the definition and characteristics of aneuploidy, the correct answer to the question is that aneuploidy is a chromosomal mutation involving the addition or loss of one or more chromosomes.

5. **Final Answer:**
- The term aneuploidy is applied for "chromosomal mutation involving addition or loss of one or more chromosomes."