What are common mistakes students make with dna profiling?

You are misusing the term "profile." Saying that all Mexicans are drug dealers or all White people are lazy are examples of how profiling can be misused.

However, it is not misuse of a DNA profile to identify the person who was found dead or to determine who killed someone.

Additionally, it is not a misuse of technology to use DNA profiling to determine the relationship between one species of bird and another.

This might apply to the use of DNA to determine whether an unborn child has genes that could lead to a disease and then ending their life, but many believe that this use is immoral.

Common mistakes students make with DNA profiling include mishandling of samples leading to contamination, improper interpretation of results, failure to follow proper procedures for amplification and analysis, and overlooking the possibility of genetic variations or mutations.