DNA fingerprinting 
(also DNA profiling)
noun
Another term for genetic fingerprinting.A group of scientists feel that much of this man's data appears unreasonable, particularly the DNA fingerprinting used to match DNA samples....
- This work laid the foundations for the whole of the biotech industry: without it, DNA fingerprinting and genetic screening would be mere science fiction.
- In this issue, two further examples are discussed where knowledge of genome size may be important; namely DNA fingerprinting and quantitative genetics.