this experiment was designed ( 1 ) to determine if h-y antigen is expressed on the cell surface of pre-implantation equine blastocyst stage embryos , ( 2 ) if so , to identify differences in expression on inner cell mass ( icm ) verses trophectoderm cells and ( 3 ) to evaluate whether the detection of this glycoprotein would aid in the identification of equine embryonic sex .
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cell surface of
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cells