Deletion of the SRY region on the Y chromosome detected in bovine gonadal hypoplasia (XY female) by PCR.

In 6 sterile heifers which were female in appearance and in genital organs, all tissues derived from blood, skin, spleen and kidney had a single 60,XY type of metaphase plate. Although the SRY gene was detected by PCR in normal bull, it was not detected in normal cow or in 3 60,XY cases studied.