Archaebacteria are not harmed by?
1. antibiotics
2. bacteria
3. bacilli
5. protozoans

DNA profiling or DNA fingerprinting

Explanation:

DNA profiling is also known as DNA fingerprinting which is widely used in to determine an individual's DNA characteristics.

DNA profiling is widely used in forensic technique in victim or criminal investigations, where DNA is collected that can be hair, blood, body tissue sample or other. The sample is then compared with other suspect's sample which are expected to to be involved to determine whether there is a genetic match and that will help to identify the victim or criminal.

DNA profiling is used to match genetic formation between people which will help to identify parentage testing as genes inherited in the family is almost same and the the victim body will be identified.

Hence, the correct answer is DNA profiling.