Search Results       Your search for [subject]Heterogametic (XY) -- Study returned 1 record.           Comparative study on the sperm countand fertility rate of heterogametic (XY) and homogametic (YY) males in the nile tilapia (oreochromis nicolitus L.). Subject: Nile tilapia -- Abstract; Tilapia -- Study; Heterogametic (XY) -- Study; Homogametic (YY) -- Study.          Add to Book Cart Relevance: 26.23%