Question:
In Prokaryotes, the genetic material, double-stranded single circular DNA is found in which region of the cell
In Prokaryotes, the genetic material, double-stranded single circular DNA is found in which region of the cell
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Because the nucleoid lacks a membrane, transcription and translation can occur simultaneously in prokaryotes.
Ribosomes can begin translating an mRNA molecule while it is still being transcribed from the DNA template in the nucleoid.
Ribosomes can begin translating an mRNA molecule while it is still being transcribed from the DNA template in the nucleoid.
Updated On: Jul 23, 2026
- Nucleus
- Nucleoid
- Protonucleus
- Nucleoplasm
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Prokaryotic cells (such as bacteria and archaea) are distinguished by their lack of compartmentalization and membrane-bound organelles.
Unlike eukaryotes, prokaryotes do not contain a membrane-bound nucleus to enclose their genetic material.
Step 2: Detailed Explanation:
Let us analyze the compartmentalization of prokaryotic genetic material.
The genetic material of a typical prokaryote consists of a single, double-stranded, circular chromosome.
Because prokaryotes lack a nuclear membrane and nucleoplasm, this chromosome is located directly in the cytoplasm.
It is concentrated in an irregularly shaped, non-membrane-bound region called the nucleoid.
The DNA in the nucleoid is highly condensed and organized through supercoiling, stabilized by small, basic nucleoid-associated proteins (NAPs) similar to eukaryotic histones.
The term "nucleus" is incorrect because it refers to the double-membrane-bound structure in eukaryotes.
"Nucleoplasm" is the fluid substance inside a eukaryotic nucleus, which is absent in prokaryotes.
Step 3: Final Answer:
In prokaryotes, the double-stranded circular DNA is found in the nucleoid region.
This corresponds to Option (B).
Prokaryotic cells (such as bacteria and archaea) are distinguished by their lack of compartmentalization and membrane-bound organelles.
Unlike eukaryotes, prokaryotes do not contain a membrane-bound nucleus to enclose their genetic material.
Step 2: Detailed Explanation:
Let us analyze the compartmentalization of prokaryotic genetic material.
The genetic material of a typical prokaryote consists of a single, double-stranded, circular chromosome.
Because prokaryotes lack a nuclear membrane and nucleoplasm, this chromosome is located directly in the cytoplasm.
It is concentrated in an irregularly shaped, non-membrane-bound region called the nucleoid.
The DNA in the nucleoid is highly condensed and organized through supercoiling, stabilized by small, basic nucleoid-associated proteins (NAPs) similar to eukaryotic histones.
The term "nucleus" is incorrect because it refers to the double-membrane-bound structure in eukaryotes.
"Nucleoplasm" is the fluid substance inside a eukaryotic nucleus, which is absent in prokaryotes.
Step 3: Final Answer:
In prokaryotes, the double-stranded circular DNA is found in the nucleoid region.
This corresponds to Option (B).
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