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Genotyping differs from serology in that


A) genotyping detects diverse antigens,whereas serology detects the underlying genetic instructions for those antigens.
B) serology detects diverse antigens,whereas genotyping detects the underlying genetic instructions for those antigens.
C) genotyping requires a fresh blood sample whereas serology can be done on a dried sample.
D) serology is faster.

E) All of the above
F) A) and C)

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_____________ is the term used to describe the stoppage of bleeding by any one of several means.

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Which two mature blood cell types descend from myeloblasts?


A) T cells and B cells
B) Erythrocytes and platelets.
C) Neutrophils and basophils.
D) Monocytes and lymphocytes.

E) B) and D)
F) All of the above

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Hydroxyurea treats sickle cell disease by


A) activating production of hemoglobin normally produced only in a fetus.
B) removing sickled cells.
C) stimulating hematopoietic stem cells.
D) transfusing new blooD.

E) None of the above
F) A) and D)

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An abnormally low white blood cell count is called ____________ .

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Vitamin K


A) is essential for the synthesis of prothrombin.
B) is used to make hemoglobin.
C) requires intrinsic factor to be absorbed.
D) is a clotting factor.

E) None of the above
F) A) and C)

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Two substances that are useful for dissolving blood clots are


A) thrombus and embolus.
B) urokinase and streptokinase.
C) factor IV and factor XII.
D) calcium ions and prothrombin activator.

E) A) and D)
F) None of the above

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A primary function of lymphocytes is to


A) phagocytize damaged cells.
B) produce enzymes that dissolve blood clots.
C) release substances that initiate blood clots.
D) act against foreign substances.

E) B) and D)
F) A) and B)

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A person with type AB blood can successfully receive blood from a person with type ___________ blood.


A) A
B) B
C) O
D) all of the above

E) C) and D)
F) A) and C)

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Vitamin B is important for the production of red blood cells because it is utilized in the synthesis of __________ .

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Petechiae are a symptom of


A) anemiA.
B) thrombocytopenia.
C) leukemia.
D) hemophilia.

E) A) and D)
F) A) and C)

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When hemoglobin molecules are decomposed,a greenish pigment called _____________ is formed.

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Which is the most rare ABO blood type in the US?


A) A
B) B
C) AB
D) O

E) B) and D)
F) B) and C)

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Blood platelets


A) form from megakaryocytes.
B) release serotonin.
C) number from 150,000 - 450,000 per microliter blood.
D) all of the above.

E) C) and D)
F) All of the above

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The proteins that B cells produce that attack foreign molecules are


A) MHC complexes.
B) interleukins.
C) lymphocytes.
D) antibodies.

E) A) and D)
F) C) and D)

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Sickle cell disease is caused by


A) a lack of dietary iron.
B) a lack of intrinsic factor.
C) an excess of hemoglobin.
D) a mutation.

E) A) and C)
F) None of the above

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Stacy has been tired and bruising easily,and she's had three respiratory infections in the past few months.She has also had headaches and a few nosebleeds.A physician should check her for


A) erythroblastosis fetalis.
B) leukemia.
C) sickle cell disease.
D) edema.

E) C) and D)
F) B) and C)

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Which of the following formed elements releases serotonin?


A) Erythrocytes
B) Platelets
C) Neutrophils
D) Basophils

E) A) and B)
F) C) and D)

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Which plasma protein is accurately described?


A) Albumin-blood clot formation
B) Gamma globulin-maintaining blood osmotic pressure
C) Fibrinogen-transport of lipids and fat-soluble vitamins
D) Beta globulins-transport of lipids and fat-soluble vitamins

E) B) and C)
F) A) and C)

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The hormone released form the kidneys that promotes the production of red blood cells is ______________ .

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