Subject: Re: Alexandrov Df(2L)b89e12 is b- -- l(2)34De-, l(2)34Dg+ i.e. it orders the previously unordered De and Dg. John Subject: Re: Alexandrov we don't have a 'Df(2L)b89e12' we only have a \*a T(2;3)b89e12 Is this what you mean? R Subject: Re: Alexandrov 'Fraid so T(2;3)b89e12 is deleted for b, 34Dc, 34Dd, 34Df, 34De but not 34Dg. J Subject: Re: Alexandrov >T(2;3)b89e12 is deleted for b, 34Dc, 34Dd, 34Df, 34De but not 34Dg. So its a three break event in fact, a Deficient Translocation. Is the Df visible or does it still look like a simple two break event? The breaks we have are basically \*B 34D4;79C3, but if you could add a third break to that you'd make a curator happy. Rach Subject: Re: Alexandrov We haven't done the cytology - Alex just says 34D4;79C3 and I suspect Df 34D4; approx 34D6 would be easily missed within a T(2;3). J