In preparying cells for karyotyping, a hypotonic solution is used in the process. What is the purpose of the hypotonic solution? a. It is used to separate leukocytes from erythrocytes. b. It is used to keep the structure of the lymphocytes intact. c. It is used to destroy erythrocytes. d. It is used to fixlymphocytes. e. It is used to help produce distinct banding patterns
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In preparying cells for karyotyping, a hypotonic solution is used in the process. What is the purpose of the hypotonic solution?
a. It is used to separate leukocytes from erythrocytes.
b. It is used to keep the structure of the lymphocytes intact.
c. It is used to destroy erythrocytes.
d. It is used to fixlymphocytes.
e. It is used to help produce distinct banding patterns
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- What would happen if patient 4 (O+) donated plasma to patient 1 (A+)? Select one: a. You cannot donate only plasma. b. The anti-A antibodies in the plasma of patient 4 would agglutinate with the antigens on the RBC of patient 1. c. It would be a safe donation because no agglutination would occur. d. The anti-A antibodies in the plasma of patient 1 would agglutinate with the antigens on the RBC of patient 4.If you run IHC and the antibody you chose binds to everything in a non-specific manner, what visual result would you see when looking at the tissue? A. No color change anywhere on the tissue B. A blank image on the microscope C. The entire tissue changing color (Brown staining) D. Half of the tissue changing colorIn a boy of 4 the absence of VIII factor was stated in blood which leds to the prolonged bleeding when damaging vessels as a result of hemostasis violation just during the formation of: A. blood prothrombinase B. tissue prothrombinase C. thrombin D. fibrin E. thrombosthenin
- Consider acute hemolytic disease as a result of the transfusion of an incompatible blood type. Which is/are true? a. red blood cells are lysed, spilling hemoglobin out of the red blood cells b. plasma antibodies cause red blood cells to clump c. plasma antibodies recruit white blood cells to attack red blood cells d. free hemoglobin in the plasma is harmless-If you could design a drug that increases extravasation at the endothelium, what is the most likely outcome? a.increased blood flow to the area of infection b.enhanced tissue repair c.enhanced expression of PRRs on the surface of phagocytes d.enhanced phagocytosisHow would you differentiate the following structures when seen in an unstained smear: a. Phagocytes and Polymorphonuclear leukocytes b. RBC and Yeast cells c. Polymorphonuclear leukocytes and Blastocystis d. Plant hairs and Muscle fibers
- Cancer cells have a complex interaction with the cells of the immune system that are present in the stroma. The immune cells have the potential to destroy the tumor if it is recognized as aberrant tissue. Which one of the following statements correctly describes an interaction between cancer cells and the immune cells of the stroma? A. Tumors stimulate formation of new blood vessels—angiogenesis—promoting tumor survival. B. The tumor establishes an immunosuppressive environment by blocking white-cell activation. C. Tumors invoke an inflammatory reaction that blocks entry of immune cells into the stroma. D. Immune cells block tumor growth by providing signals that inhibit cancer cell proliferation.Why must antibody treatments like ZMapp be composed of monoclonal antibodies instead of polyclonal antibodies? a. Therapeutic antibodies must all bind the same epitope. b. Therapeutic antibodies must NOT all bind the same epitope. c. Monoclonal antibodies have much higher binding affinity than polyclonal antibodies. d. Monoclonal antibodies have much lower binding affinity than polyclonal antibodies. e. Monoclonal antibodies can be produced indefinitely; polyclonal antibodies can only be produced for a short time. IS it B? Can you please explainWhich ONE of the following flow cytometry results is most likely in a patient with chronic lymphocytic leukaemia? Select one: A.CD11c+, CD25+, CD103+ B.CD5+, CD19+, CD20+ (dim) C.Surface immunoglobulin+, CD5+, cyclin D1+ D.CD10+, CD20+, FMC7+
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