What is a centromere? How does the position of centromere form the basis of classification of chromosomes. Support your answer with a diagram showing the position of centromere on different types of chromosomes.

Explanation

### Step-by-Step Solution

**Step 1: Define Centromere**
A centromere is a specialized region of DNA on a chromosome that links a pair of sister chromatids together. It plays a crucial role during cell division (mitosis) by serving as the attachment point for spindle fibers, which are essential for the movement of chromosomes.

**Step 2: Explain the Function of Centromere**
The primary function of the centromere is to facilitate the proper segregation of chromosomes during cell division. It acts as the site for the assembly of kinetochores, which are complex protein structures that attach to spindle fibers. This ensures that each daughter cell receives the correct number of chromosomes.

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