D.N.A of bacterium is:
Correct answer: C. Haploid, double stranded, coiled
- A. Haploid, single stranded, coiled
- B. Diploid, double stranded, coiled
- C. Haploid, double stranded, coiled
- D. Diploid, single stranded, coiled
Explanation
Bacterial DNA is characterized by being a single, circular, double stranded molecule that is tightly coiled to fit within the cell. This DNA forms the bacterial chromosome, and because bacteria have only one chromosome, they are haploid. Option C is correct because it accurately describes the nature of bacterial DNA. Option A is incorrect as bacterial DNA is not single stranded. Option B is incorrect because bacteria are not diploid; they only have one chromosome. Option D is incorrect as bacterial DNA is not single stranded and bacteria are not diploid.
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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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