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In Nature this week, a team of researchers from across the US present a comprehensive analysis of the genome-wide chromatin landscape of Drosophila melanogaster, based on 18 histone modifications and summarized by nine prevalent combinatorial patterns. Active genes display distinct chromatin signatures that are correlated with "disparate gene lengths, exon patterns, regulatory functions and genomic contexts," the authors write.

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NPR reports that researchers have developed chimeric embryos as part of work toward growing human organs in animals for organ transplants.

According to the Washington Post, the Biden Administration is set to make changes to federal restrictions on fetal tissue research.

In Science this week: approach to isolated trace DNA from archaic humans from sediments, and more.

Texas Monthly looks into the DNA Zoo being collected by Baylor College of Medicine researchers.