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All of the following are the general characteristics of Micrococcus spp and Staphylococcus spp, Except?

  • A.On blood agar Micrococcus spp appear as smaller colonies than Staphylococcus spp
  • B.Micrococcus is ubiquitous in nature
  • C.Both are catalase positive
  • D.None of the above 

Answer: D

Correct answer: None of the above

All three statements are correct, so there is no exception. Micrococcus colonies are smaller than staphylococcal ones and often pigmented, the genus is widely distributed in the environment and on skin, and both genera are catalase positive - which is what separates them from the streptococci rather than from each other.

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