Question

Which of the following does not have a nucleus in its cell?

• A. Fungi
• B. Bacteria
• C. Algae
• D. Protists

Answer 1

The correct option is B

Bacteria

The correct option is option B

Explanation for the correct option:

1. The nucleus is an important membrane-bound organelle found in the eukaryotic cell that carries all genetic information in the form of DNA.
2. Bacteria is a prokaryotic organism.
3. It lacks a membrane-bound nucleus.
4. Nucleoid (nucleus-like) which has an irregular form, houses all or most of the genetic material of bacteria.
5. Nucleoid lacks a nuclear membrane.

Explanation for the incorrect options:

Option A

Fungi have a membrane-bound nucleus in their cytoplasm where DNA is wrapped around histone protein.

Option C

Protists are eukaryotic organisms that are mononucleated or multinucleated.

Option D

The nucleus of the algae are well organized and membrane-bound. Algae can be prokaryotic or eukaryotic.

Final answer: Bacteria do not have a nucleus in their cell.