August 2009: An X-chromosome variant that protects against AIDS progression, a microRNA linking normal and cancer stem cells, and how cells move in the worm embryo
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Learn about an X chromosome variant that protects against the progression of AIDS (start 0:50), hear about a microRNA that is decreased in both normal and cancer stem cells (start 8:08), and learn about migrating cells in the worm embryo (start 17:08).