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Write about the arguments for and against developing a genetic fingerprint profile for all members of society - Essay Example

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It has been found in research that sections f DNA which do not code for part f a gene contains highly repetitive sequences f bases. These are called Variable Number Tandem Repeats, {VNTR's}. A genetic fingerprint is a method f revealing the differences in size f VNTR's between individuals…
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Write about the arguments for and against developing a genetic fingerprint profile for all members of society

Download file to see previous pages... The fragments produced are invisible at this stage and so the fragments are transferred to a nylon membrane using southern blotting which involves adding a layer f absorbent paper to the nylon membrane. The DNA is then drawn upwards by capillary motion. The DNA fragments are then denatured by heating to give single stranded DNA. A radioactive isotope f phosphorus with a base sequence identical to one f the VNTR sequences is used to locate the particular bands. This is also known as a DNA probe and it binds to its complementary single stranded DNA. Any excess probe is washed off. The probes are accurately located by placing X-ray film over the nylon membrane.
DNA fingerprinting is a method that compares the fragments f DNA. DNA fingerprinting was first invented to detect the presence f genetic diseases. Today, DNA fingerprinting is used in different ways. DNA is analyzed using a Southern Blot, which allows scientists to observe the base pair patterns.
DNA fingerprinting can be used in a few different ways. First, to find out if the child belongs to a person DNA fingerprinting may be used. When a child is born, it inherits the VNTR's from the father and the mother. VNTR's are variable number tandem repeats, which is repeated sequences f base pairs. The VNTR patterns are used to determine the father or mother. ...Download file to see next pagesRead More
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