Which division maintains genetic similarly?

Options

A. Mitosis
B. Amitosis
C. Reduction division
D. Meiosis

Answer

**Step-by-Step Solution:**

1. **Understanding Genetic Similarity**: Genetic similarity refers to the preservation of the same genetic material (DNA) in both parent and offspring cells. This means that the number and structure of chromosomes remain unchanged during the division process.

2. **Identifying Types of Cell Division**: There are several types of cell division, but the two most relevant to this question are mitosis and meiosis. Mitosis is known as equational division, while meiosis is known as reduction division.

3. **Analyzing Mitosis**:
- Mitosis is a type of cell division that results in two daughter cells, each having the same number of chromosomes as the parent cell.
- In mitosis, the chromosome number remains constant (diploid to diploid), which means that the genetic information is preserved.
- Therefore, mitosis maintains genetic similarity between the parent and offspring cells.

4. **Analyzing Amytosis**:
- Amytosis is a form of asexual reproduction that occurs in some unicellular organisms, such as bacteria.
- It involves direct cell division without the typical processes of mitosis or meiosis.
- Since it does not involve the organized separation of chromosomes, it does not maintain genetic similarity in the same way as mitosis does.

5. **Analyzing Meiosis**:
- Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four haploid cells from one diploid cell.
- This process introduces genetic variation and does not preserve genetic similarity, as the resulting cells have only half the number of chromosomes compared to the parent cell.

6. **Conclusion**: Based on the analysis, the division that maintains genetic similarity is mitosis, as it produces daughter cells that are genetically identical to the parent cell.

**Final Answer**: The division that maintains genetic similarity is **mitosis**.

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