The purple brown granules of hybridized signal distributed in the cytoplasm of principle cells of cauda epididymides.

• 杂交信号均为紫褐色的颗粒，分布在附睾尾的主细胞和近端输精管的上皮细胞的胞质内，表明胞质内mRNA与地高辛标记RED－20cDNA探针杂交。