23 October, 2020

Leap Into Our Branches

Paleogenetics is evolutionary sleuthing. The way DNA sequencing throws light back into the foggy paths of prehistory is explained lucidly by a practitioner.

Leap Into Our Branches
outlookindia.com
2018-10-26T11:02:52+05:30

In 2010, a team of paleo geneticists at the Max Planck Institute for Evolutionary Anthropology, led by biologist Svante Pääbo, published an ast­onishing result—they had mana­ged to sequence the Neanderthal genome and found that there had been interbreeding between Neanderthals and West Eurasian humans. In a sense, the field of paleogenetics had come of age. Paleogenetics, or the science of using genetics to study ancient hum­ans and other populations, relied heavily on advances in technology to extr­act and sequence genomes since the Human Genome project. This new book by David Reich, a member of this team, is a popular exposition of the revolutionary potential of paleogenetics to understand humanity’s origins and ‘histories’.

The workhorse of paleogenetics is the DNA molecule—a helix-shaped molecule which is the blueprint for life. It consists of arrangements of four bases denoted by the letters, A,T, G, and C whose ordering determines the coding of amino acids and hence the production of different proteins in a...

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