Nature1y
The Molecular Clock and Estimating Species Divergence
What is the molecular clock? Levels of molecular variation could be used, in principle, to estimate divergence times, serving as evolutionary "clocks" that "tick" at different rates. Subsequent ...
Scientists Discover a Hidden Brain Clock Driving Bipolar Mood Swings
Researchers have identified a second dopamine-driven "clock" in the brain that works alongside the biological 24-hour cycle, ...
Nature2y
Neutrality and Molecular Clocks
The term 'molecular clock' was coined to describe the phenomenon, comparing the manner in which sequence changes occur to regular ticks of a clock. Is there really such a molecular clock?
earth8d
Molecular timer may hold the key to preventing preterm birth
Scientists have discovered a molecular timer in mice that governs pregnancy length, offering new insights into preterm birth ...
The Scientist3y
Long-Lived Trees’ Epigenetic Mutations Serve as a Molecular Clock
Cells found in different branches of a tree have different patterns of DNA methylation, changes in which accumulate over time. Jef Akst was managing editor of The Scientist, where she started as an ...
The Economist8d
Wasps stole genes from viruses
To assist their offspring in this endeavour, mother Cynipoidea wasps also squirt into the flies a mix of venom, viruses and ...