Which type of chromosome will appear 'L'-shaped during anaphase?

Options

A. Telocentric
B. Acrocentric
C. Metacentric
D. Submetacentric

Answer

To determine which type of chromosome appears 'L'-shaped during anaphase, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Chromosome Structure**:
- Chromosomes are made up of two sister chromatids joined at a region called the centromere. The position of the centromere can vary, leading to different types of chromosomes.

2. **Identify Types of Chromosomes**:
- There are four main types of chromosomes based on the position of the centromere:
- **Metacentric**: Centromere is in the middle, resulting in two equal arms.
- **Submetacentric**: Centromere is slightly off-center, resulting in one arm being longer than the other.
- **Acrocentric**: Centromere is located closer to one end, creating one very short arm and one very long arm.
- **Telocentric**: Centromere is at one end of the chromosome, resulting in a single arm.

3. **Analyze Chromosome Appearance During Anaphase**:
- During anaphase, chromosomes are pulled apart towards opposite poles of the cell. The shape of the chromosomes can be observed based on their centromere position.
- **Submetacentric chromosomes** will appear 'L'-shaped because the unequal lengths of the arms cause them to bend at the centromere during separation.

4. **Conclusion**:
- The type of chromosome that appears 'L'-shaped during anaphase is the **submetacentric chromosome**.

### Final Answer:
The type of chromosome that will appear 'L'-shaped during anaphase is the **submetacentric chromosome**.