LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Genetic screening. Computer artwork of the genetic screening of a baby to test for the presence of inherited disorders. Blood cells (in the test tube at top right) are taken from the baby to obtain a sample of DNA, deoxyribonucleic acid (orange & red strand). The genetic code is revealed as a series of bands by a process called electrophoresis. The DNA bands are transferred onto an autoradiograph (pink sheet) to compare the code with known genetic disorders. Genetic screening may be carried out on foetuses in the uterus.
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