Randy just wanted to add my 2 cents about bristle phenotypes in regards to
age. Older flies can lose bristles or knock off chunks of them. A fly that
is stubby or forked is really easy to tell when young and can be harder to
score when older. Be sure to knock out some wild type flies for comparision.
If you have the wildtypes right next to the mutants, I don't think you can be
And though you did not mention it, eye color can be harder to score as the
fly gets older too. I am not sure why that is but colors like scarlet and
purple are less obvious on an old fly. Huge color variations like orange and
white are a cinch to score in any fly.
good luck, Denise
> > Also, I read that the phenotype of the fly can be different for younger
> > flys compared to adults flies, is this true? And does that mean that i
> > have to check every few days to make sure the phenotype is the same?
>> Some phenotypes differ, some don't (I'm assuming you mean young adults vs.
> mature adults). If you look at your flies when they're young and then
> again when they're older, do you see a difference?
>> Have you asked your professor or TAs about this?
>> Chris Jones
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