NCERT - Health and Diseases Questions and Answers of Class 12 Biology | GkSeries

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Questions
76 Infection of Ascaris occurs due to
1 Contaminated food and water
2 Mosquito bite
3 Tse-tse fly
4 Sand fly

Answer: Contaminated food and water
77 Disease caused by Trypanosoma gambiense is
1 Sleeping sickness
2 Kala-azar
3 Diphtheria
4 Dysentery

Answer: Sleeping sickness
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78 The symptom of typhoid called intestinal hemorrhage occurs in ____ week of infection.
1 1st
2 2nd
3 3rd
4 4th

Answer: 3rd
79 In AIDs the system which fails is
1 Digestive
2 Repsiratory
3 Defence
4 Sensory

Answer: Defence
80 Study of mode of transmission of diseases is called
1 Parasitology
2 epidemiology
3 nosology
4 immunology

Answer: epidemiology
81 Deficiency of iodine causes
1 Tetany
2 Cretinism
3 Myxodema
4 Goitre

Answer: Goitre
82 AIDS virus HIV first starts destroying
1 Leucocytes
2 Thromoboycytes
3 B-lymphocytes
4 T-lymphocytes

Answer: Leucocytes
83 Excessive bleeding from an injury is due to deficiency of
1 Vitamin A
2 Vitamin B
3 Vitamin K
4 Vitamin E

Answer: Vitamin K
84 Which one is vehicle borne?
1 Typhoid
2 Cancer
3 Rabies
4 Mumps

Answer: Typhoid
85 Bronchogenic carcinoma is cancer of
1 Breast
2 Intestine
3 Lungs
4 Liver

Answer: Lungs
86 The cells which act as parasites in the body
1 Schwann cells
2 Hepatocytes
3 Kupffer’s cells
4 Cancer cells

Answer: Cancer cells
87 One of the following is mainly infected by HIV (AIIMS)
1 Helper T-lymphocytes
2 Killer T-lymphocytes
3 Cytotoxic T-lymphocytes
4 Memory T-lymphocytes

Answer: Helper T-lymphocytes
88 ELISA – a test is helpful for the detection of which of the followings?
1 Leprosy
2 Cancer
3 AIIDS
4 Malaria

Answer: AIIDS
89 Cancer of blood is
1 Lymphoma
2 Sarcoma
3 Osteoma
4 Leukemia

Answer: Leukemia
90 Pair of viral diseases is
1 Ringwork, AIDS
2 Typhoid, Tuberculosis
3 Dysentery, common cold
4 Common Cold, AIDS

Answer: Common Cold, AIDS

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