Monday, April 6, 2015

DNA doesn't control all inherited traits



New research demonstrates that characteristics passed through generations are not only decided by DNA. Scientists studied proteins known as histones, which act as spools around which DNA is wound. Histones are responsible for controlling whether or not genes are switched on.

Researchers at the University of Edinburgh carried out experiments in a yeast with similar gene control mechanisms to humans. When changes were introduced to a histone that caused it to switch off nearby genes,, the effect was inherited by following generations of yeast cells.

This research is important and quite interesting because it shows that changes in the histone spools are passed through generations. This also demonstrates that DNA is not solely responsible for all inherited traits.

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