Epigenetic structures appear to reduce the rate of changes in genes essential for survival and reproduction, a study finds, challenging the notion that mutations are evenly distributed throughout the genome prior to selection.
Parents’ mutations, even if they’re not inherited by offspring, could affect subsequent generations through changes to epigenetic marks, a study finds.
The year’s most impressive achievements include methods to watch translation in cells, trace cell fates, avoid mitochondrial mutations, edit DNA, and build antibiotics from scratch.