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David davida1 at iname.com
Sun Sep 27 16:22:14 EST 1998

I'm not sure if it's necessarily age-related, but one problem which may be
more likely to occur in older flies, is that some flies' wings can look
somewhat 'serrated', whereas in fact the flies are not 'serrate' mutants,
simply because bits have broken off the wings - I guess the longer they
have 'been around',  the more likely this is to occur.



> 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
> confused.
>   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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