Thursday 28 March 2013

DNA

1. The topic of this paragraph is the process of a DNA test.
2. 
a) human cells must be collected  from a person's cheek using a swab.
b) send this cell sample to a laboratory
c) scientists extract the DNA from the swab
d) create many samples from it
e) the samples are put into a gel mixture
f) and subjected to an electric current
g) A DNA probe is used which attaches itself to the sample.
h) analyze the probe's location
i) scientists develop the film of this unique DNA strand

3. First of all,Ultimately
4.The suprising information is that DNA testing is now available on the Internet and ordinary people can now order in-home DNA tests and get their results in just a few days.

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