Behinds Quote by Mark Stoneking
“D.N.A. sequences change by mutations, and the idea behind the molecular clock is that those changes occur at, more or less, a constant rate, over time.”
About This Quote
Source Book: Human Evolutionary Genetics, Mark Stoneking, 2005
Mutations accumulate at a roughly steady pace, allowing time estimation from DNA differences.
In simple terms: DNA changes steadily over time.
Key Takeaway
Use genetic data to infer evolutionary timelines.
Themes
evolution
genetics
time measurement
Mood
analytical
curious
Type
scientific
educational
When to use this quote
- phylogenetics
- archaeology
- population studies
Key Concepts
Molecular clock
mutation rate
Questions to Reflect On
- How reliable is the molecular clock for recent events?
- What factors cause rate fluctuations?
A Different Perspective
Assumes constant rate, which can vary across lineages.
