Monday, January 11, 2010

Superb DNA "Wrapping" Animation

Aha! It is really hard to explain to young students new to the concept of genetics precisely how DNA relates to reproduction and chromosomes. This well-narrated video shows in sequence how DNA is "wrapped" in coil upon coil using just a few advanced vocabulary words:

  • histones
  • chromatin
  • solenoid
  • chromosomes
Above all, the last few moments are my favorite, when the 3-D digital animation, "zooms out" to an SEM sequence animation (like a flip-book) of the chromosomes as they become part of a cell in the midst of mitosis! Phenomenal!

I found this animation after reading about the Cold Spring Harbor Digital Biology Animations by the Dolan Digital DNA Learning Center on the blog Free Technology for Teachers!


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