Chromosome with two arms can be seen in chromosome

Options

A. Metacentric
B. Sub metacentric
C. Acrocentric
D. all the three

Answer

To answer the question about which type of chromosome has two arms, we need to analyze the different types of chromosomes based on their centromere positions. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand Chromosome Structure
Chromosomes are structures within cells that contain DNA. They are made up of two arms, which are divided by a centromere. The position of the centromere determines the classification of the chromosome.

### Step 2: Identify Types of Chromosomes
There are several types of chromosomes based on the position of the centromere:
1. **Metacentric Chromosomes**: The centromere is located in the middle, resulting in two equal arms.
2. **Submetacentric Chromosomes**: The centromere is slightly off-center, creating one long arm and one short arm.
3. **Acrocentric Chromosomes**: The centromere is located near one end, resulting in one very short arm and one very long arm.

### Step 3: Evaluate the Options
- **Option 1: Metacentric** - Correct, as both arms are equal.
- **Option 2: Submetacentric** - Correct, as it has two arms of different lengths.
- **Option 3: Acrocentric** - Correct, as it has two arms, although one is much shorter than the other.
- **Option 4: All of the above** - Correct, since all three types of chromosomes have two arms.

### Step 4: Conclusion
The correct answer is **Option 4: All of the above**, as all three types of chromosomes (metacentric, submetacentric, and acrocentric) can be seen with two arms.

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