An example of a time span (1 gen 1987 anni – 1 gen 1987 anni)

Descrizione:

population geneticists first demonstrated the existence of such a 'mitochondrial Eve'. After analysing DNA from 147 people from around the world to chart their genetic relationships, they used a 'molecular clock', based on the number of DNA mutations that arise with each generation, to estimate Eve's age

Aggiunto al nastro di tempo:

Data: