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

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Free Download as PDF of the detailed solutions for class 12 Biology from NCERT or CBSE text book as per exam pattern, to help you in day to day learning. We provide all important questions and answers from chapter Health and Diseases of Biology.
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91 Widal test is used for diagnosis of
[1] Typhoid
[2] Cancer
[3] AIDS
[4] Malaria
Answer: Typhoid
92 Leprosy is ______ type of disease
[1] Non-contagious
[2] contagious
[3] Allergic
[4] Hormonal
Answer: contagious

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93 Which one of the following is a degenerative disease?
[1] Cataract
[2] Kwashiorkar
[3] Cretinism
[4] Marasmus
Answer: Cataract
94 Typhus fever is caused by ______.
[1] Fungi
[2] Bacteria
[3] Virus
[4] Rickettsia
Answer: Rickettsia
95 AIDS causing HIV principally infects
[1] All lymphocytes
[2] Activator B-cells
[3] T4 lymphocytes
[4] Cytotoxic T-cells
Answer: T4 lymphocytes
96 A person was found to HIV positive by ELISA. The test that affirms it is
[1] Southern blot
[2] Northern blot
[3] Western blot
[4] All the above
Answer: Western blot
97 Breast cancer is the example of ______ disease.
[1] Deficiency
[2] Hormonal
[3] Allergic
[4] Malignant
Answer: Malignant
98 HIV is retrovirus as its genetic information is contained in
[1] DNA
[2] DNA instead of RNA
[3] RNA instead of DNA
[4] Protein
Answer: RNA instead of DNA
99 Malaria is caused by _____.
[1] Ascaris
[2] Plasmodium
[3] Entamoeba
[4] Trypanosoma
Answer: Plasmodium
100 Disease existing at or before birth is
[1] Congenital
[2] Communicable
[3] Noncommunicable
[4] None of these
Answer: Congenital
101 Cancerous cells are killed by radiations because they are
[1] Dividing rapidly
[2] Deprived of oxigen
[3] Starved
[4] Mutating fast
Answer: Dividing rapidly
102 Cancer of cervix is caused by
[1] Human Papilloma virus
[2] Pep pills
[3] Epstein Barr Virus
[4] Fetty diet
Answer: Human Papilloma virus
103 Kwashiorkor and beri-beri are
[1] Communicable diseases
[2] Infectious diseases
[3] Deficiency diseases
[4] None of the above
Answer: Deficiency diseases
104 Sarcoma is cancer of
[1] Epithelial tissue
[2] Mesodermal tissue
[3] Blood
[4] Endodermal tissues
Answer: Mesodermal tissue
105 Which of the followings is a structural changes in cancer cells?
[1] Apoplasia
[2] Metastasis
[3] Both (1) and (2)
[4] Neithr (1) nor (2)
Answer: Apoplasia

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