Structure which provide shape to chromosome is called

Options

A. 1)Telomere
B. 2)Satellite
C. 3)Centromere
D. 4)Chromomere

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the structure that provides shape to a chromosome. We need to analyze the given options to identify the correct one.

2. **Evaluating the Options**:
- **Option 1: Telomere**: Telomeres are repetitive nucleotide sequences at the ends of chromosomes. They protect chromosomes from deterioration but do not provide shape to them. Therefore, this option is incorrect.

- **Option 2: Satellite**: Satellites are sub-viral agents composed of nucleic acid. They do not play a role in providing shape to chromosomes. Hence, this option is also incorrect.

- **Option 3: Centromere**: The centromere is a region on a chromosome that plays a crucial role in its shape and function. It is where the two sister chromatids are joined and is essential for proper chromosome segregation during cell division. The position of the centromere can determine the type of chromosome (metacentric, submetacentric, or telocentric). Thus, this option is correct.

- **Option 4: Chromomere**: Chromomeres are bead-like structures formed by chromatin during cell division. They do not provide shape to the chromosome itself. Therefore, this option is incorrect.

3. **Conclusion**: Based on the analysis, the structure that provides shape to a chromosome is the **centromere**. Thus, the correct answer is **Option 3: Centromere**.

---