Which of the following is a character of prokaryotes:-

Options

A. Presence of membrane bound cell organelles
B. Presence of distinct nucleus
C. Nucleus is not distinct and cell wall is composed of mucopeptide
D. Cytoplasm contain 80s ribosomes

Answer

To determine the characteristics of prokaryotes, we can analyze the provided information step by step.

### Step-by-Step Solution:

1. **Understanding Prokaryotic Cells**: Prokaryotic cells are defined by their lack of a membrane-bound nucleus and other membrane-bound organelles. This is a fundamental characteristic that distinguishes them from eukaryotic cells.

2. **Nucleoid Presence**: In prokaryotes, the genetic material is located in a region called the nucleoid. Unlike eukaryotic cells, the nucleoid is not surrounded by a nuclear membrane.

3. **Cell Wall Composition**: Prokaryotic cells typically have a cell wall composed of peptidoglycan (also known as mucopeptide). This structure is essential for maintaining the shape and integrity of the cell.

4. **Ribosome Size**: Prokaryotic ribosomes are smaller than eukaryotic ribosomes. They consist of two subunits (30S and 50S) that combine to form a 70S ribosome, which is different from the 80S ribosomes found in eukaryotic cells.

5. **Evaluating Options**:
- If an option states that prokaryotic cells have membrane-bound organelles, it is incorrect.
- If an option mentions a distinct nucleus, it is also incorrect.
- An option stating that the nucleus is not distinct and the cell wall is made of mucopeptides is correct.
- If an option claims that the cytoplasm contains 80S ribosomes, it is incorrect.

### Conclusion:
The correct characteristic of prokaryotes is that they do not have a distinct nucleus, and their cell wall is made of mucopeptides (peptidoglycan).