Identify the wrong statement about meiosis.

Options

A. Pairing of homologous chromosomes.
B. Four haploid cells are formed.
C. At the end of meiosis number of chromosumes are reduced to half.
D. Two cycles of DNA replication occur

Explanation

To identify the wrong statement about meiosis, we need to analyze each option provided in the question. Here’s a step-by-step breakdown:

### Step 1: Understand Meiosis
Meiosis is a type of cell division that occurs in gametes (sperm and egg cells) and results in four haploid cells from one diploid parent cell. It consists of two main stages: Meiosis I and Meiosis II.

### Step 2: Analyze Each Statement
1. **Pairing of homologous chromosomes**: This is a correct statement. During Prophase I of meiosis, homologous chromosomes pair up in a process called synapsis.

2. **Four haploid cells are formed**: This is also correct. At the end of meiosis, four haploid cells are produced from one diploid parent cell.

3. **At the end of meiosis, the number of chromosomes is reduced to half**: This statement is correct as well. If a diploid cell (with 46 chromosomes) undergoes meiosis, it will produce four haploid cells, each with 23 chromosomes.

4. **Two cycles of DNA replication occur**: This statement is incorrect. DNA replication occurs only once before meiosis begins, during the S phase of interphase. After this replication, the cell undergoes two rounds of division (Meiosis I and Meiosis II) without a second round of DNA replication.

### Conclusion
The wrong statement about meiosis is: **"Two cycles of DNA replication occur."**

### Final Answer
The wrong statement about meiosis is: **"Two cycles of DNA replication occur."**

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