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DNA profiling, also known as DNA fingerprinting or genetic profiling, is a forensic technique used to identify and compare the genetic material of individuals. It involves analyzing specific areas of the DNA that are highly variable among individuals, known as polymorphisms. Here are the key steps and components of DNA profiling: 1. **Sample Collection**: DNA can be extracted from various biological samples, such as blood, saliva, hair, skin cells, or other bodily fluids.