How does a flagellum know when to stop growing? The short answer is, we don't know. The clues so far available point to sophisticated feedback controls for these outboard motors and other organelles in the cell.
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This summer, we saw how Discover Magazine blogger Carl Zimmer tried to manufacture a controversy and score some points for the Darwin side in the evolution debate.
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Back in 2008, Richard Dawkins was scathing in his estimation of groups like the National Center for Science Education, which he plainly charged with dishonesty.
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The consensus of molecular biologists -- people who actually study how the genome works -- now believe that the idea of "junk DNA" is essentially wrong.
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