Hi Frankie
I look at the genex catalog and they have several sons of 5175 listed. If mendel's law holds true then 5175 has a maximum of 1 marbling marker and minimum of 1 tenderness gene. Some of the highest marbling bulls listed in the catalog do not have a marbling marker. I think there is a lot research needing to be done before you can use DNA test for trait selection. I am interested in the marker test that MARC discovered and is it more in line with the Ultrasound epds? I am still trying to figure out how to get ultrasound done econimicaly here in Maine. The nearest CUP teck is WV.
pat