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In a viable plate count, each ___represents a ___from the sample population.

  • A.cell, colony
  • B.colony, cell
  • C.hour, generation
  • D.cell, generation

Answer: B

Correct answer: colony, cell

The assumption behind a viable plate count is that each colony grew from a single cell that could reproduce. So counting the colonies and multiplying by the dilution gives the number of viable cells in the original sample - and the result is reported as colony-forming units, since a clump would also give one colony.

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