A schematic representation of the CG33205 gene in Drosophila and some alternative transcripts annotated in FlyBase. B agarose gel showing the RT-PCR products generated using primers in exons 4 and 6 (arrows in A) from wild type embryos (wt), mbl mutant embryos (mbl−/−) and their siblings (mbl+/−) and from mbl mutant embryos expressing transgene 1 or 2 under the control of da::GAL4 (rescue 1 and 2). The marker is a 100 bp ladder.