Can overexpression of TGF—β1 gene change the sex ratio in transgenic mice?

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Mouse TGF-β1 gene was microinjected into male pronuclei of F2 hybrid fertilized eggs obtained by mating CSJLF1 and C57BL/6J inbred strains to generate transgenic mice with over-expressed TGF-β1 gene.The rate of founder production is 31% and Southern blot
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