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State whether the following is true or false.
A cell line's identity can be confirmed by genetic profiling.

  • A.True only at large scales
  • B.False only at small scales
  • C.True
  • D.False

Answer: C

Short tandem repeat profiling gives a fingerprint that can be matched against reference databases, which is how cross-contamination is detected. Many journals and repositories now require the check. The profile is cheap to obtain and settles the question definitively.

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