Please answer all and part of 73 got cut off. Other options include D) complete

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Please answer all and part of 73 got cut off. Other options include D) complete their maturation and education in the bone marrow E) recognize and target foreign surface antigens presented to them 7. Antibodies or immunoglobulins are a) Proteins capable of attacking specific foreign antigens b) Able to bind to the specific antigen which induced their production c) Typically contain two (and sometimes more) "variable" regions that bind antigen d) Classified into 5 groups based on their size and structure e) All of the above 68. Tnue or falss, Sickle cell disease is a hereditary disease and its effects can be observed in the fetus carrying these genes. This disease may even affect fetal development and the viability of the pregnancy (ie. failure of the fetus to come to full term.). A) true B) False 69. Sickle cell "disease" is indicative of a patient who is for the defect. This patient a) heterozygous, will most likely suffer from a sickling "crisis" during his lifetime b) heterozygous, is said to have an evolutionary advantage in the population c) homozygous, will most likely suffer from a sickling "crisis" during his lifetime d) homozygous, is said to have an evolutionary advantage in the population 70. Which of the following is most associated with allergies and hypersensitivity? 71. More than one selection may be correct. Select all correct choices. Even though a mature erythrocyte does not have a nucleus, its cytoplasmic enzymes keep that cell viable for its limited lifespan. These enzymes are responsible for allowing the cell to carry out protein synthesis maintaining the flexibility of the membrane allowing the cell to carry out membrane transport allowing the cell to carry out mitosis keeping the iron in hemoglobin in the correct redox state 72. In the embryo, Hb formed is composed of the following chains: e) B2y2 a) a2ß2 b) a2E2 d) 8282 73. More than one selection may be correct. Select all correct choices. Our immune system protects and defends us against invading pathogens. It is our population of T cells that a) engage in humoral immunity b) engage in cellular immunity c) produce antibodies when activatecd 70

Explanation / Answer

67) E

68) True

69) A

70) C

71) Option 2 , 3 and 5

72) In embryo Gewer i.e. 2 zeta and 2 epsilon are found while in fetus 2 alpha and 2 gamma are found

73) option B and E

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