Male flies compensate for having a single X chromosome by doubling the single X chromosome's level of expression. This increase is mediated by MOF, a histone H4 acetyltransferase. MOF, along with other proteins and an RNA called roX2, binds to the male X chromosome. In the 21 September
Contrary to the popular thought that many species are “unculturable,” the majority of bacteria known to populate the human gut can be grown in the lab, scientists show.