DNA testing

1)Topic Sentence:"Believe it or not, the process of completing a DNA test is not very difficult."
2)There are four steps. a) Human cells must be collected.b)Send this cell sample to a laboratory, where scientists extract the DNA from the swab and create many samples from it.c) The samples are put into a gel mixture, and are subjected to an electric current.d)Scientists develop the film of this unique DNA strand.
3)Two transitional expressions are:First,next.
4)The surprising information is that DNA testing has become very popular, so it is now available on the Internet.  Ordinary people can now order in-home DNA tests and get their results in just a few days.
Marina Efstratiou
Maria Pantelide