Fig. 6. Failure to incorporate [3H]uridine into swellings in 83DE, 84AB
and 84D regions as well as in some unidentified regions (indicated by arrows
in A) in chromosomes of SuUR/SuUR Sgs3-GAL4 UAS-SuUR+
prepupae. (C) Incorporation of the [3H]uridine into regular puffs
62C, 62E and 63E in wild-type polytene chromosomes.