Sciencespeaking topic
Only a tiny fraction of your DNA is a truly 'useful' gene; most of the rest was long thought to be 'junk.' But that so-called junk may control when genes turn on and off. Why do the things science calls 'useless' so often turn out to be the key?
— noncoding DNA
practice with this topic
Set the timer (5-30 min), take 20 seconds of prep if you like, start talking. Jot your thoughts onto the sticky-note board.
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