Differences in maternal and paternal X chromosome activity levels revealed
Biologists have found that the cells of some organs in women’s bodies contain an active “paternal” X chromosome, while in other organs the “maternal” X chromosome will be active with a different set of mutations and epigenetic marks. This can cause serious differences in the work of the same genes in different organs of women, the press service of the British Medical Research Council reported.
New technical capabilities increase knowledge about the structure and “behavior” of DNA
Scientists have identified tens of thousands of mysterious “knots” in human DNA that may play a key role in controlling gene activity. The activity of 4-strand DNA in living cells has been revealed. Synthetic DNA with four extra letters has been created. DNA twists into strange shapes to fit into cells.