Figure 6.

Gel electrophoresis of reverse transcription-polymerase chain reaction (RT-PCR) products from gerbil stria vascularis. Gene-specific primers were used for detection of transcripts for segments of P2Y₂ and P2Y₄. +, Reactions performed in the presence of reverse transcriptase; -, reactions performed in the absence of reverse transcriptase. Position of the bands for the expected lengths of the RT-PCR products [447 bp, P2Y₄; 301 bp, P2Y₂] are indicated and a 100-bp ladder is shown (L).