In bacteria,which of the following statements is correct regarding their genetic material?
- A$DNA$ is enclosed in a nucleus.
- B$DNA$ is scattered throughout the cytoplasm.
- C$DNA$ is double-stranded and circular.
- DNone of the above.
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Mycobacterium has
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View SolutionWhich group includes microorganisms that lack a defined nucleus but contain genetic material (nucleoid)?
Match Column-$I$ with Column-$II$ and select the correct option.
Column-$I$ Column-$II$ $(A)$ Halophiles $(p)$ Gram-positive bacteria $(B)$ Firmicutes $(q)$ Hot springs habitat $(C)$ Methanogens $(r)$ Gram-negative bacteria $(D)$ Spirochetes $(s)$ Photosynthetic bacteria $(E)$ Thermoacidophiles $(t)$ Extremely salty areas habitat $(u)$ Responsible for biogas production
| Column-$I$ | Column-$II$ |
| $(A)$ Halophiles | $(p)$ Gram-positive bacteria |
| $(B)$ Firmicutes | $(q)$ Hot springs habitat |
| $(C)$ Methanogens | $(r)$ Gram-negative bacteria |
| $(D)$ Spirochetes | $(s)$ Photosynthetic bacteria |
| $(E)$ Thermoacidophiles | $(t)$ Extremely salty areas habitat |
| $(u)$ Responsible for biogas production |
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View SolutionThe bacteria $(Clostridium\, botulinum)$ that cause botulism are:
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View SolutionIn prokaryotes,the photosynthetic lamellae remain in:
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