Tossup

This organism contains the novel photoreceptor protein LITE-1, which is extremely efficient at processing blue and ultraviolet light. The transmembrane proteins SID-1 and SID-2 provide input molecules for one process in this organism controlled by lin-4, a heterochronic (10[1])regulator that accumulates at this organism’s L2 stage of development. This organism was the first to have its full (10[1])nervous system mapped. (10[4])A team (10[1]-5[1])led by John Sulston (-5[1])determined (-5[1])that this organism’s hermaphroditic form has exactly 959 somatic cells. Andrew (10[1])Fire (10[1])and Craig (10[1])Mello won the 2006 Nobel Prize in Medicine for discovering RNA interference in this organism, whose use as a model was popularized by Sydney Brenner. For 10 points, the first multicellular organism to have its full genome sequenced is what species of nematode (10[1])worm? ■END■ (10[4])

ANSWER: C. elegans [or Caenorhabditis elegans; prompt on Caenorhabditis] (SID-1 and SID-2 are responsible for environmental RNA uptake; lin-4 is the first discovered microRNA.)
<MS, Biology>
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