With DNA, tests can be determined to match genes off an offspring to the parent because of the specific unique information stored in DNA. Scientists are able to decipher the certain genes derived from a certain person with a small amount of extracted blood from each person, the offspring and suspected biological parent. This is how it works:
46 chromosomes are necessary to create a person. 23 chromosomes come from the egg, and another 23 chromosomes are received from the sperm. Therefore the offspring will bear half of each of the genetic code derived from the two biological parents. So, to find the correct biological parents of a child, the suspected biological parent and child will have .25 to .50 of a teaspoon of blood extracted. The chromosomes in the extracted blood is then carefully compared with each others chromosomes. Scientists search for matches of the same band widths and if 99% of the matches are true, then the alleged biological parent IS the biological parent. Though if only 2 or more DNA matches are false, then the alleged biological parent is ruled out of being the actual biological parent.
The technique of paternity testing are similar to those techniques used in the courtroom to judge whether suspected criminals are guilty of a crime. By using hair, skin, or blood they, being the suspected criminal, left at the scene of the crime and the hair, skin, or blood, that they will be forced to donate, during their trial can accurately determine whether if was them who conducted the crime. The DNA in the cells of the hair, skin, or blood will be compared to each other to see if they match up, and are guilty.
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were fully composed, as well as altered images and diagrams, by Josh Eisma (2002), unless otherwise specified.
