1 Double necked guitars offer plenty of variation to set you apart. 2  From instrument combinations to sâ¦. 3  Wind Instruments: More Than Just Hot Air Whether it is as basic as an animal horn or a conch shell, or as sophisticated as a flute, wind instruments have played a role in human history and development.
Fingerprints might be left at a crime scene. DNA fingerprinting can establish a criminal's guilt. The majority of a human's DNA will match that of any other human. The sections of DNA used in DNA fingerprinting are passed doen from parents to their children.
Leicester University geneticist Alec Jeffreys developed a technique called DNA fingerprinting in 1985. This technology, which has become known as DNA profiling, can be used to identify individuals. Modern-day DNA profiling, called STR analysis, is a very sensitive technique which only needs a few skin cells, a hair root or a tiny amount of blood or saliva. DNA profiling is especially useful for solving crimes but can also be used to confirm if people are related to each other, such as for paternity testing.