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.
DNA fingerprinting was invented in 1984 by Professor Sir Alec Jeffreys after he realised you could detect variations in human DNA, in the form of these minisatellites. DNA fingerprinting is a technique that simultaneously detects lots of minisatellites in the genome to produce a pattern unique to an individual. This is a DNA fingerprint. The probability of having two people with the same DNA fingerprint that are not identical twins is very small. Just like your actual fingerprint, your DNA fingerprint is something you are born with, it is unique to you. The first step of DNA fingerprinting was to extract DNA from a sample of human material, usually blood.