Myelomas Are Cancers of Blood Plasma Cells-White Blood Cells That

Myelomas are cancers of blood plasma cells-white blood cells that are normally responsible for producing large quantities of antibodies. In the following "Circos plot" for myelomas in a hypothetical mammalian genome, the interchromosomal rearrangements are indicated by red lines and variations in copy numbers are indicated in blue. The positions of named genes are indicated with arrows. On which chromosome do you expect to find the antibody genes? Write down the chromosome number (1 to 5) as your answer.