You are working as a scientist in an antibody-design group at a biologics company. Based on your knowledge of antibodies, which region(s) on which antibody type should you target for your design efforts to develop new antigen-binding capabilities in soluble antibodies

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of