What are episomes?

  • A
    Hereditary $DNA$ of bacterial cell
  • B
    Extrachromosomal hereditary material of bacteria associated with nucleoid
  • C
    Modification of the cell membrane performing respiration
  • D
    None of these

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The process in which viruses are involved in sexual reproduction of bacteria is called

Select the correct option from Column-$I$ and Column-$II$.
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
$(u)$ Responsible for biogas production

The organisms which completely lack a cell wall and can live without oxygen are

Select the mismatched pair from the following.

How many of the following organisms are prokaryotic?
Bacteria,Blue-green algae,Fungi,Porifera,Echinodermata,Moss,Bryophytes,Pteridophytes,Gymnosperms,Ctenophora,Angiosperms

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