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A Dna Bank Is Good For All

Imagine that a convicted child molester is released from jail and
that he is now traveling around the country looking for work. One day
this criminal returns to his old ways and he attacks a young child whose
dead body is found in a deserted field the following day. The only trace
of evidence at the crime scene is a semen specimen on the boys clothes.
Now this specimen could be useful if the police tracked down, and arrested
the suspect, and then took a blood sample of his that matched the crime
scene specimen. But, since no other clues are found this criminal was
never arrested and for the next couple years he repeated this act many
more times. It is a shame that innocent children had to die because of
this sick man, and most people would agree criminals like this should be
stopped at any cost. Now just think what would have happened had their
been a DNA data bank that contained this man To understand why a DNA
data bank is necessary it is important to know exactly what DNA is.
Firstly, there are cells which makes up all organisms and inside these
cells are chromosomes. Chromosomes, which are made up of DNA, contain all
the hereditary information that an individual has. Now this DNA
(Deoxyribonucleic acid) which makes up these chromosomes simply contains
the blueprints of the organism. It is DNA which determines what, where,
and when to make a certain protein, and it basically is the storage center
for information in almost all creatures. This knowledge of DNA is
important because now it is possible to show the correlation between DNA
and forensic technology.
There are many reasons why DNA is such a useful tool for law
enforcement. One important feature of DNA, relates to the fact that all
individuals have unique DNA, is that each cell in an organism has
identical DNA. Whether it is found in in skin cells, hair cells, semen
cells, or blood cells the DNA found in one cell is identical to the DNA
found in all other cells in...