Human Y-chromosome is :

Options

A. Ascrocentric
B. Telocentric
C. Submetacentric
D. Acentric

Answer

**Step-by-Step Solution:**

1. **Understanding Chromosome Types**:
- Chromosomes can be classified based on the position of their centromeres. The main types are:
- **Telocentric**: Centromere is located at one end of the chromosome.
- **Metacentric**: Centromere is located in the middle, resulting in two arms of equal length.
- **Acrocentric**: Centromere is located closer to one end, resulting in one arm being significantly shorter than the other.
- **Acentric**: A chromosome segment that lacks a centromere.

2. **Identifying the Human Y-Chromosome**:
- The human Y-chromosome is known to be acrocentric. This means that its centromere is located closer to one end, resulting in one long arm and one short arm.

3. **Conclusion**:
- Based on the definitions and characteristics of the chromosome types, the correct classification of the human Y-chromosome is that it is **acrocentric**.

**Final Answer**: The human Y-chromosome is acrocentric.

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