Multiple choice

What is the first step for DNA profiling?

  1. A DNA sample is collected and then amplified using PCR

  2. Satellite DNA are cut with to generate fragments

  3. Fragment length will differ due to the variable length

  4. The fragments are separated using gel electrophoresis

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A Correct answer
Explanation

The first step in DNA profiling is obtaining a sample of DNA and amplifying the specific regions of interest using Polymerase Chain Reaction (PCR) to get enough material for analysis.