How many tetrads are visible in human meiocyte?

Options

A. 46
B. 23
C. 46 pairs
D. 23 pairs

Answer

To determine how many tetrads are visible in a human meiocyte, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Term "Meiocyte":**
- A meiocyte is a cell that is undergoing meiosis. Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four daughter cells.

2. **Identify the Chromosome Number in Humans:**
- Humans have a diploid number of chromosomes, which is 46 (2N = 46). This means there are 23 pairs of chromosomes.

3. **Meiosis and Tetrads:**
- During meiosis, homologous chromosomes pair up to form structures called tetrads. A tetrad consists of four chromatids (two homologous chromosomes, each with two sister chromatids).

4. **Calculate the Number of Tetrads:**
- Since humans have 23 pairs of chromosomes, during meiosis, these pairs will form 23 tetrads. Each pair of homologous chromosomes will align together, forming one tetrad.

5. **Conclusion:**
- Therefore, the number of tetrads visible in a human meiocyte is 23.

### Final Answer:
The number of tetrads visible in a human meiocyte is **23**.

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