Why Is a "No-DNA" Control Used When Performing Molecular Tests

question 6

Multiple Choice

Why is a "no-DNA" control used when performing molecular tests using the polymerase chain reaction (PCR) ?

• A)to ensure that the targeted DNA is amplified
• B)to ensure that nontargeted DNA is negative
• C)to ensure that the targeted DNA containing the mutation is positive
• D)to ensure that no DNA cross-contamination of the samples, controls, or reagents occurs

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