Growth on a cell-free aificial solid medium is possible for following except -: (A) Ureaplasma urealyticum, (B) Mycoplasma Pneumoniae, (C) C & L form of proteus vulgaris, (D) Chlamydia
Answer is D. They are bacteria but may be considered as viruses on account of their filterability and failure to grow in cell-free culture media. REF: Textbook of microbiology Ananthanarayan, and Paniker. Page no.: 415