Number of chromosomes in the meiocyte of onion,potato,housefly, humans and Ophioglossum are respectively.

Options

A. 32,24, 12,46, 1260
B. 16,12, 6,23, 630
C. 16,48, 12,46, 1260
D. 32,48, 12,46, 1260

Answer

To solve the question regarding the number of chromosomes in the meiocyte of onion, potato, housefly, humans, and Ophioglossum, we will follow these steps:

### Step-by-Step Solution:

1. **Understanding Meiocytes**: Meiocytes are diploid cells (2n) that undergo meiosis to produce gametes. Therefore, the number of chromosomes in meiocytes is represented as 2n.

2. **Identify the Number of Chromosomes in Each Organism**:
- **Onion (Allium cepa)**: The meiocyte of onion has 2n = 16 chromosomes.
- **Potato (Solanum tuberosum)**: The meiocyte of potato has 2n = 48 chromosomes.
- **Housefly (Musca domestica)**: The meiocyte of housefly has 2n = 12 chromosomes.
- **Humans (Homo sapiens)**: The meiocyte of humans has 2n = 46 chromosomes.
- **Ophioglossum**: The meiocyte of Ophioglossum has an exceptionally high number of chromosomes, 2n = 1260.

3. **Compile the Results**: Now that we have the number of chromosomes for each organism, we can list them:
- Onion: 16
- Potato: 48
- Housefly: 12
- Humans: 46
- Ophioglossum: 1260

4. **Final Answer**: The number of chromosomes in the meiocyte of onion, potato, housefly, humans, and Ophioglossum are respectively:
- **16, 48, 12, 46, 1260**.