All Subjects
      All Types

        Info

        Grades

        6-12

        Accessibility

        Caption

        Permitted Use

        Stream, Download and Share


        Part of NOVA
        44 Favorites
        1714 Views

        DNA Spells Evolution

        Learn about the molecular basis of evolution with this video from NOVA’s Evolution Lab. DNA weaves together the tapestry of life on Earth. DNA contains the blueprints for creating different organisms. When DNA is copied, it sometimes mutates, leading to variation among organisms. Variation in expressed traits may affect how an organism survives in its environment. For example, polar bears are more suited for Arctic life than brown bears, thanks to genes for lighter fur and better insulation. Mutations happen randomly and are not necessarily helpful.

        Find out more at the NOVA Evolution Lab.

        Contributor:
        Funder:
        Producer:

        You must be logged in to use this feature

        Need an account?
        Register Now