Pure Cultures are Often Obtained by Isolating

Question

Pure cultures are often obtained by isolating
A) streaks.
B) broths.
C) CFUs (colony forming units).
D) inoculums.
E) specimens.

Accepted Answer

Pure cultures are obtained by isolating individual colonies or CFUs on agar plates or other solid media. Streaking is one method used to isolate individual CFUs, but it is not the only method. Broths, inoculums, and specimens do not necessarily result in pure cultures, and may contain multiple species or strains.