09-08-2007, 09:10 AM
Now those 2
1) Which of the following genes involved in the synthesis of immunoglobulins are linked on a single chromosome?
A. C gene for gamma chain and C gene for alpha chain
B. C gene for gamma chain and C gene for kappa chain
C. V gene for kappa chain and C gene for the epsilon chain
D. V gene for lambda chain and C gene for kappa chain
E. V gene for lambda chain and V gene for heavy chain
2)A 30 year-old man comes to medical attention because of fevers and night sweats. CT scan reveals masses involving the mediastinal nodes, abdominal nodes, and liver. Biopsy of one of the nodes demonstrates a nodular lymphoma with nodular areas composed predominately of small (6-12 micrometer) lymphocytes with scanty cytoplasm and irregular, twisted, and indented nuclei. This lymphoma is most closely linked to a translocation involving which of the following?
A. Immunoglobulin heavy chain and bcl-1
B. Immunoglobulin heavy chain and bcl-2
C. Immunoglobulin heavy chain and myc
D. Kappa immunoglobulin light chain and myc
E. Lambda immunoglobulin light chain and myc
1) Which of the following genes involved in the synthesis of immunoglobulins are linked on a single chromosome?
A. C gene for gamma chain and C gene for alpha chain
B. C gene for gamma chain and C gene for kappa chain
C. V gene for kappa chain and C gene for the epsilon chain
D. V gene for lambda chain and C gene for kappa chain
E. V gene for lambda chain and V gene for heavy chain
2)A 30 year-old man comes to medical attention because of fevers and night sweats. CT scan reveals masses involving the mediastinal nodes, abdominal nodes, and liver. Biopsy of one of the nodes demonstrates a nodular lymphoma with nodular areas composed predominately of small (6-12 micrometer) lymphocytes with scanty cytoplasm and irregular, twisted, and indented nuclei. This lymphoma is most closely linked to a translocation involving which of the following?
A. Immunoglobulin heavy chain and bcl-1
B. Immunoglobulin heavy chain and bcl-2
C. Immunoglobulin heavy chain and myc
D. Kappa immunoglobulin light chain and myc
E. Lambda immunoglobulin light chain and myc