This is what wiki says of Funnelbeakers:

Genetics

The Funnelbeaker culture is believed to be the origin of the gene allowing adults of Northern European descent to digest lactose. In the area formerly inhabited by this culture, prevalence of the gene is virtually universal.[2]
Ancient DNA extracted from individuals ascribed to the TRB horizon were found to possess mtDNA haplogroups H, J, and T.[3]
Comments anyone?