Sarah E. Hirsch

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An essential aspect of stem cell culture is the successful maintenance of the undifferentiated state. Many types of stem cells are FGF2 dependent, and pluripotent stem cells are maintained by replacing FGF2-containing media daily, while tissue-specific stem cells are typically fed every 3rd day. Frequent feeding, however, results in significant variation in(More)
The Muller F element (4.2 Mb, ~80 protein-coding genes) is an unusual autosome of Drosophila melanogaster; it is mostly heterochromatic with a low recombination rate. To investigate how these properties impact the evolution of repeats and genes, we manually improved the sequence and annotated the genes on the D. erecta, D. mojavensis, and D. grimshawi F(More)
Course Description This course introduces you to the tools and concepts central to the sociological study of birth and death in the United States. We ask how people are born and die in America-not biologically, but by paying attention to the cultural norms, social institutions, and economic factors that influence the processes. We aim to understand how our(More)
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