Which one is present in prokaryotes ?
(a) Nucleus
(b) Golgi apparatus
(c) Mitochondria
(d) None of the above.

Options

A. Nucleus
B. Golgi apparatus
C. Mitochondria
D. None of the above.

Answer

To solve the question of which structure is present in prokaryotes, we need to analyze each option provided:

1. **Understanding Prokaryotes**: Prokaryotes are organisms that lack a true nucleus and membrane-bound organelles. They are considered primitive cells. The genetic material in prokaryotes is not enclosed within a nuclear membrane; instead, it is found in a region called the nucleoid.

2. **Analyzing the Options**:
- **(a) Nucleus**: Prokaryotes do not have a nucleus. The genetic material is present in the form of a nucleoid, which is not membrane-bound. Therefore, this option is incorrect.
- **(b) Golgi apparatus**: Prokaryotic cells lack membrane-bound organelles, including the Golgi apparatus. This option is also incorrect.
- **(c) Mitochondria**: Similar to the Golgi apparatus, mitochondria are membrane-bound organelles that are absent in prokaryotic cells. Thus, this option is incorrect as well.
- **(d) None of the above**: Since prokaryotes do not possess a nucleus, Golgi apparatus, or mitochondria, this option is the only correct choice.

3. **Conclusion**: Based on the analysis of the options, the correct answer is (d) None of the above.