Q4 / 180 · NEET 2017 · Botany

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?

  • A
    Bacillus
  • B
    Pseudomonas
  • Correct answer
    C
    Mycoplasma
  • D
    Nostoc

Solution

Mycoplasmas are smallest, wall-less prokaryotes, pleomorphic in nature. These are pathogenic on both plants and animals. Smallest cellular organism is Mycoplasma gellisepticum.

Hence, the correct answer is option: 'C'.

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