Which of the following contains genes for drug and disease resistance in bacteria?
Correct answer: B. Plasmid
- A. Necleotide
- B. Plasmid
- C. Mesosome
- D. Ribosome
Explanation
Plasmids are small, usually circular DNA molecules that replicate independently of the bacterial chromosome and may carry genes for antibiotic resistance and other advantageous traits. Students may choose the nucleoid or “necleotide” because genetic material is associated with it, but resistance genes are often carried on plasmids.
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About Prokaryotic and Eukaryotic Cells
Prokaryotic cells lack a membrane-bound nucleus and complex membrane-bound organelles, whereas eukaryotic cells contain a nucleus, specialized organelles and a cytoskeleton. Comparisons include DNA organization, ribosomes, cell walls, size, division and examples such as bacteria, archaea, protists, fungi, plants and animals.
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