Question

Why is PCR amplification conditionally used in DNA fingerprinting procedures?

Options

• Because it is always required regardless of sample size

• Because it is only necessary when the initial DNA sample is limited in quantity

• Because it replaces the need for restriction digestion

• Because it is only used in forensic applications

Answer 1

PCR amplification is conditionally used in DNA fingerprinting because it is only necessary when the initial DNA sample amount is very small. In cases with sufficient DNA (such as large blood samples), PCR amplification can be skipped. This conditional use makes the procedure more efficient and cost-effective, as it avoids unnecessary amplification steps when not required.