Use of embryonic stem cells in research has been hotly debated for several years. This animation presents the basics on how stem cell lines are established. For more information on how techniques similar to this are used in research, visit DNA from the Beginning and explore Concept 41: DNA is only the beginning for understanding the human genome.
This animation is also available as INTERACTIVE MEDIA .
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15067. Promises of gene therapy, Mario Capecchi
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16569. Problem 25: Some viruses store genetic information in RNA.
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