Tu n'as rien vu à Hiroshima. Rien.

Mar 19, 2008 00:55

So maybe I should actually be studying, but since I don't have to do physics urgently anymore...



My GSI and his cohorts are such dorks, this is ridiculous.

You're a fly geneticist, and you've isolated a few interesting mutations in the lab.

You notice that some flies are just a mess: only eat the most rancid, ethanol-rich media, hang exclusively at the bottom of the bottle, don't move much, don't return their mother's phone calls, don't do anything but drink and sleep. You call these mutants "perdition" or "pe-".

Your other flies aren't much better. You've got a handful of guys (all of these mutants showed up first in guy flies) that won't leave the other lies alone, chomping their wings, taking their yeast, making fun of the poor little juvenile maggots - these are the "crime" or "c-". "Punishment" ("pu-") mutants are mostly easier to handle, eating, sleeping and recreating in perfect synchrony, but there is the occasional daring motorcycle breakout attempt from the bottle. Lastly, your "redemption" ("r-") flies are pretty much like regular old flies, but they've just got this insufferable smile that you can't seem to get off their faces.

Anyhoo, being a geneticist, you do some crosses. First you decide to determine the linkage between "crime" and "punishment". You cross a male c-pu-/Y fly with a wild-type female c+pu+/c+pu+ fly. You take the daughters of this cross and mate them with the fathers, and you count 3801 offspring of this cross. Most of these are either wild-type or showing both mutant traits, but 306 of them have one mutant trait but not the other. You repeat this experiment for the other combinations of mutants, and here are your summarized results.

c-pe 514 5281
c-r 2572 6463
c-pu 306 1187
pu-r 378 3801
pe-r 288 1209
pe-pu 398 1997

The first column has the mutants used in the experiment, the second column has the number of analyzed offspring in your second generation showing only one of those mutant traits, and the third column has the total number of offspring analyzed.

Starting from crime, how long, in centimorgans, is the road to perdition? And again with respect to crime, does perdition come before punishment? English majors, leave Dostoevsky out of this.

I really shouldn't be this entertained, but whatever. Also we're watching this really interesting movie in french right now but I'll go on about that later.

bio, nerditude, nerding it up, fail

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