Evolutionary Pressure - Natural Selection in Humans

Natural Selection in Humans

The Malaria parasite can exert a selective pressure on populations. This pressure has led to natural selection for erythrocytes carrying the sickle cell hemoglobin gene mutation (Hb S)—causing sickle cell anaemia—in areas where malaria is a major health concern, because the condition grants some resistance to this infectious disease

Read more about this topic:  Evolutionary Pressure

Famous quotes containing the words natural, selection and/or humans:

    Poetry is the most direct and simple means of expressing oneself in words: the most primitive nations have poetry, but only quite well developed civilizations can produce good prose. So don’t think of poetry as a perverse and unnatural way of distorting ordinary prose statements: prose is a much less natural way of speaking than poetry is. If you listen to small children, and to the amount of chanting and singsong in their speech, you’ll see what I mean.
    Northrop Frye (1912–1991)

    When you consider the radiance, that it does not withhold
    itself but pours its abundance without selection into every
    nook and cranny
    Archie Randolph Ammons (b. 1926)

    The worst condition of humans is when they lose knowledge and control of themselves.
    Michel de Montaigne (1533–1592)