A thesis submitted in partial fulï¬llment ofthe requirements for the degree of ... 0 List of Figures ... Schematic representation ofthe HLA class I and ll molecules. ..... functional pseudogencs HLAâH, -I. âK, -L and âX, which carry mutations in ...... The Burusho live in the I-iunza, Nagar and Yasin valleys in the Northern Areas of.