Drosophila polytene chromosomes are formed by repeated rounds of DNA replication without cell division.
By The Scientist Staff | January 28, 2014
NIH, ELISSA LEI
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By Kate Yandell
A mass migration of mobile regulatory elements increased the expression of thousands of genes in the uterus during the evolution of pregnancy.
By Ruth Williams
Scientists have determined the crystal structures of bacterial translocator proteins, but their functions remain unclear.
By Jenny Rood
Charles Townes, Nobel Prize-winning physicist, has passed away at age 99.
View the January 2015 contents.
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