Question:
Bacterial plasmid genes of non-chromosomal origin are associated with
Bacterial plasmid genes of non-chromosomal origin are associated with
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R-plasmids = antibiotic resistance; F-plasmids = conjugation; toxin genes = less common.
Updated On: Dec 14, 2025
- providing resistance against antibacterial agents
- the degradation of toxic materials
- the production of certain toxins
- the transfer of genetic material from one cell to another cell
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The Correct Option is A, B, C, D
Solution and Explanation
Step 1: Understand plasmids.
Plasmids are extrachromosomal, circular DNA molecules in bacteria. They frequently carry genes that provide a selective advantage to the host cell.
Step 2: Identify the key function.
The most common genes carried on plasmids are R-plasmids, which provide resistance to antibiotics. These genes help bacteria survive antibacterial agents by neutralizing or pumping out drugs.
Step 3: Evaluate options.
(B) and (C) may occur but are not the primary or defining features of plasmids. (D) refers to conjugation, facilitated by F-plasmids, but resistance genes are the most common association.
Step 4: Conclusion.
Thus, plasmid genes are best associated with antibiotic resistance.
Plasmids are extrachromosomal, circular DNA molecules in bacteria. They frequently carry genes that provide a selective advantage to the host cell.
Step 2: Identify the key function.
The most common genes carried on plasmids are R-plasmids, which provide resistance to antibiotics. These genes help bacteria survive antibacterial agents by neutralizing or pumping out drugs.
Step 3: Evaluate options.
(B) and (C) may occur but are not the primary or defining features of plasmids. (D) refers to conjugation, facilitated by F-plasmids, but resistance genes are the most common association.
Step 4: Conclusion.
Thus, plasmid genes are best associated with antibiotic resistance.
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