26006 views

Natural Selection in Humans

This video shows the protection against malaria by the sickle-cell mutation to illustrate how evolution does not necessarily result in the best solution imaginable but proceeds by whatever means are available. there is an intimate connection between the infectious parasitic disease malaria and the genetic disease sickle cell anemia in some parts of the world. A keenly observant young man named Tony Allison, working in East Africa in the 1950s, first noticed the connection and assembled the pieces of the puzzle. His story stands as the first and one of the best understood examples of natural selection, where the selective agent, adaptive mutation, and molecule involved are known—and this is in humans to boot.

You need to login to download this video.
connect to facebook or login or signup

Channels: Genetics

Tags: natural selection humans

Uploaded by: ( Send Message ) on 25-02-2012. Dnatube suggest users to have interest in drug testing, mesothelioma, insurance, medical lawyers.

Duration: 14m 4s

We promote science. You can find science videos on drug testing, mesothelioma, medical insurance and medical lawyers


Dnatube: Sciencific and Medical video site.