H-Y Evolution |
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| Authors: | P Pechan M Tracey |
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| Institution: | (1) University of Waterloo, Waterloo, Ontario, Canada;(2) Department of Biology, Florida International University, 33199 Miami, Florida, USA |
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| Abstract: | Summary The female: male sex ratio in litters born to C57 black mice immunized with male spleen preparations is 2 1 and males were stillborn. In additionDrosophila busckii males are H-Y antigen positive. It is argued that H-Y is the primary testicular determinant and that this role is evolutionarily ancient. |
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