FIG. 4. Micrograph A shows double im- munohistochemical stain& for the prwscr of :(pHSD (reddish-brown cy- toplasm) and BrdL- (hlueish nucleic in a section nf a wrpus luteutn from a ewe on day 1 oft he rstroue cycle. Micrograph B represents normal serum control from an adjacent section. In A, note that cells are primarily labeled only for 9ljHSD t lorp nrrru’sJ or only fbr Rrtlll (nrror~‘- heads), with relatively few double Meled cells (bmall urrowsl. Hnr = 50 um.
Conversely