How many genomes types are present in a typical green plant cell?

Options

A. More than five
B. More than ten
C. Two
D. Three

Answer

To determine how many genome types are present in a typical green plant cell, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Types of DNA Present in Plant Cells**:
- In a typical green plant cell, there are three main types of genomes: nuclear DNA, mitochondrial DNA, and chloroplast DNA.

2. **Nuclear DNA**:
- The first type is **nuclear DNA**, which is located in the nucleus of the cell. This DNA is responsible for normal nuclear inheritance, where genetic traits are passed from parents to offspring through the nucleus.

3. **Mitochondrial DNA**:
- The second type is **mitochondrial DNA**. Mitochondria are organelles that generate energy for the cell and have their own DNA. This DNA is inherited maternally and is involved in the process of cellular respiration.

4. **Chloroplast DNA**:
- The third type is **chloroplast DNA**. Chloroplasts are the organelles responsible for photosynthesis in green plants and also contain their own DNA. Like mitochondrial DNA, chloroplast DNA is inherited through the cytoplasm (extracellular inheritance).

5. **Conclusion**:
- Therefore, in a typical green plant cell, there are **three types of genomes**: nuclear DNA, mitochondrial DNA, and chloroplast DNA. The correct answer is option **(C) 3**.