When chromosome sets are present in multiple of 'n', the condition is termed

Options

A. Diploidy
B. Haploidy
C. Euploidy
D. Aneuploid

Answer

To solve the question "When chromosome sets are present in multiple of 'n', the condition is termed", we need to analyze the options provided and understand the terminology related to chromosome sets.

### Step-by-Step Solution:

1. **Understanding Ploidy**:
- Ploidy refers to the number of sets of homologous chromosomes in a genome. The term 'n' represents a single set of chromosomes.

2. **Analyzing the Options**:
- **Diploidy**: This refers to having two sets of chromosomes (2n). For example, humans are diploid organisms with 46 chromosomes (23 pairs).
- **Haploidy**: This refers to having a single set of chromosomes (n). For example, gametes (sperm and egg cells) are haploid.
- **Euploidy**: This refers to having one or more complete sets of chromosomes. If an organism has chromosome sets in multiples of 'n' (like 2n, 3n, etc.), it is termed euploidy.
- **Aneuploidy**: This refers to an abnormal number of chromosomes, which can be one more or one less than the normal set. It does not relate to complete sets of chromosomes.

3. **Identifying the Correct Answer**:
- Since the question specifically asks for the condition when chromosome sets are present in multiples of 'n', the correct term is **Euploidy**.

### Final Answer:
The condition when chromosome sets are present in multiple of 'n' is termed **Euploidy**.

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