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Article #85: DNA Testing And Its Applications

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The explanation of DNA testing that AATTGCCTTTTAAAAA. This is a perfectly
follows is intended as an introduction to acceptable way of describing a piece of
the subject for those who may have DNA. Someone with a machine called a DNA
limited backgrounds in biological synthesizer could actually synthesize the
science. While basically accurate, this same piece of DNA from the information
explanation involves liberal use of AATTGCCTTTTAAAAA alone.
illustration and, in some cases, The sequence of bases (letters) can code
over-simplification. Although intended for many properties of the body's cells.
to be informative, this is brief and The cells can read this code. Some DNA
incomplete explanation of a complex sequences encode important information
subject. The author suggests consulting for the cell. Such DNA is called, not
the scientific literature for more surprisingly, "coding DNA." Our cells
rigorous details and alternative views. also contain much DNA that doesn't encode
DNA EXPLAINED IN EASY TERMS anything that we know about. If the DNA
DNA is material that governs inheritance doesn't encode anything, it is called
of eye color, hair color, stature, bone non-coding DNA or sometimes, "junk DNA."
density and many other human and animal Application of DNA Testing
traits. DNA is a long, but narrow DNA Testing in Forensics
string-like object. A one foot long The purpose of DNA Testing (typing)in
string or strand of DNA is normally forensic medicine is to match a sample
packed into a space roughly equal to a from the crime site with a suspect.
cube 1/millionth of an inch on a side. Importantly, DNA testing has proven to be
This is possible only because DNA is a as powerful for exonerating suspects as
very thin string. it has for convicting them. A great
Our body's cells each contain a complete diversity of criminal detection has
sample of our DNA. One cell is roughly benefited from DNA testing, and it has
equal in size to the cube described in been especially valuable in solving rape
the previous paragraph. There are muscle and murder cases.
cells, brain cells, liver cells, blood DNA Testing in Healthcare
cells, sperm cells and others. The DNA Testing is also used in detecting
Basically, every part of the body is made the genetic diseases, And also helpful in
up of these tiny cells and each contains curing them or preventing them to be
a sample or complement of DNA identical passed on to the offspring. DNA testing
to that of every other cell within a also used to detect the susceptibility of
given person. There are a few individuals or a race to vaccine and
exceptions. For example, our red blood medicines.
cells lack DNA. Blood itself can be DNA Testing in Legal
typed because of the DNA contained in our DNA Testing is also used to settle
white blood cells. disputes related to claimant of property,
Not only does the human body rely on DNA aids etc in court of law. DNA Testing Is
but so do most living things including also used to establish the parent hood.
plants, animals and bacteria. DNA Testing in archeology and human
A strand of DNA is made up of tiny genome.
building-blocks. There are only four, This is the latest application of DNA
different basic building-blocks. Testing. Where archeologist and
Scientists usually refer to these using researchers use the DNA Testing to
four letters, A, T, G, and C. These establish the oldest misty of origin and
four letters are short nicknames for more history of human.
complicated building-block chemical DNA Testing in Agriculture
names, but actually the letters (A,T, G This application of DNA Testing helps in
and C) are used much more commonly than making genetically more productive and
the chemical names so the latter will not robust and useful organism to develop and
be mentioned here. Another term for make it reach the farmers. The another
DNA's building blocks is the term, application of the DNA Testing is also to
"bases." A, T, G and C are bases. identify and protect rare species of
For example, to refer to a particular organisms and prevent them to get wiped
piece of DNA, we might write: out due to the industrial agriculture.






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