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Noah’s Ark blot representing several mammalian orders probed with the intron from S. macroura SRY. Lanes: 1, M. eugenii male and female; 2, S. macroura male and female; 3, T. vulpecula male and female; 4, T. aculeatus male and female; 5, H. sapiens male and female; 6, O. aries male and female; 7, M. musculus domesticus male and female.
