Monday, November 10, 2008

Monday's Molecule #96

 
You haven't been very successful lately at guessing Monday's "Molecule" so this week is going to be an easy one. All you have to do is identify the molecules (plural) that are responsible for this strange looking fly. Just naming the genes will be sufficient.

This week's Nobel Laureate won the prize for his work on these genes (and several others).

The first one to correctly identify the molecules/genes and name the Nobel Laureate(s), wins a free lunch at the Faculty Club. Previous winners are ineligible for one month from the time they first collected the prize. There are only two ineligible candidates for this week's reward: Bill Chaney of the University of Nebraska and Dima Klenchin of the University of Wisconsin. Since they are two of the three most frequent winners, the competition is a bit easier this week.

THEME:

Nobel Laureates
Send your guess to Sandwalk (sandwalk (at) bioinfo.med.utoronto.ca) and I'll pick the first email message that correctly identifies the molecule and names the Nobel Laureate(s). Note that I'm not going to repeat Nobel Laureate(s) so you might want to check the list of previous Sandwalk postings by clicking on the link in the theme box.

Correct responses will be posted tomorrow. I reserve the right to select multiple winners if several people get it right.

Comments will be blocked for 24 hours. Comments are now open.

UPDATE: The mutant Drosohila melanogaster is called "bithorax" because it has two pairs of wings instead of just one pair. It actually doesn't have two thoraces, instead the 3rd thoracic segment is transformed into a duplicate of the second thoracic segment. The complete transformation requires two different mutations called bx, and pbx. Both mutations are in the regulatory region of the gene UBX and they affect expression of that gene. The Nobel Laureate is Edward Lewis.

The winner is Dale Hoyt from Athens, Georgia (USA).


2 comments:

  1. It's the 3rd thoracic segment that's transformed into a 2nd thoracic segment. The thorax in insects has 3 segments -- the 1st bears legs only, the second and third bear wings in most groups except true flies, which have halteres on the third segment.

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  2. Oops! Sorry 'bout that. Brain fart.

    I got it right on the other posting and I've fixed my error here.

    Thanks

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