--Peter A. Peterson

As with bz-m918501, bz-m918504 also arose in a cross in an isolation plot when Uq-I159 was the only known transposon. The segregation ratio suggests that it is autonomous as all the round bz types are spotted in a cross of bz-m Sh/bz sh x bz/bz. The pattern is a late type of moderate frequency. There is an unexpected high frequency of completely colored types among the round class. If these represent an instance of a non-suppressible insert, then it would not be autonomous.

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