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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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31 Vector host of malaria is
[1] Female Anopheles mosquito
[2] Male Anopheles mosquito
[3] Aedes mosquito
[4] Culex mosquito Answer
Answer: Female Anopheles mosquito
32 Which one of the following diseases is caused by bacteria
[1] Rabies
[2] Small pox
[3] Measles
[4] Tuberculosis
Answer: Tuberculosis

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33 Which of the following is fourth dimension of health?
[1] physical
[2] mental
[3] mental
[4] spiritual
Answer: spiritual
34 Itai-Itai disease is caused by _____.
[1] Mercury
[2] Lead
[3] Cadmium
[4] Iron
Answer: Cadmium
35 Anaplasia is
[1] Transfer of cancer cells
[2] Formation of tumour
[3] Loss of cells adherence and cell differentiation
[4] Action of lysosomes over cells
Answer: Loss of cells adherence and cell differentiation
36 Heamophilia disease can transfer through ______.
[1] Heredity
[2] Metal
[3] Pollutant
[4] Vector
Answer: Heredity
37 AIDS virus spreads in the body through
[1] Suppressor T-cells
[2] Carrier T-cells
[3] Helper T-cells
[4] Killer T-cells
Answer: Helper T-cells
38 The pathogen of the typhoid is directly transmitted through
[1] urine
[2] water
[3] blood
[4] cerebrospinal
Answer: water
39 Swine Flu is caused by
[1] HIV
[2] HINI
[3] Herpes zostr
[4] Mumps virus
Answer: HINI
40 Beri-Beri is caused by the deficiency of ______.
[1] Vitamin D
[2] Vitamin B
[3] Vitamin C
[4] Vitamin E
Answer: Vitamin B
41 Sarcoma is cancer of
[1] Epithelial tissue
[2] Endodermal tissue
[3] Ectodermal tissue
[4] Mesodermal tissue
Answer: Mesodermal tissue
42 AIIDs spreads through
[1] Blood transfusion
[2] Placental transmission
[3] Sexual contact
[4] all of the above
Answer: all of the above
43 Which of the following is not congenital disease?
[1] sickle cell anaemia
[2] albinism
[3] haemophilia
[4] hepatitis
Answer: hepatitis
44 Congenital diseases caused by environmental factors are
[1] PKU and sickle cell anaemia
[2] Down’s syndrome and Turner’s syndrome
[3] Haemophilia and colour blindness
[4] Cleft palate and harelip
Answer: Cleft palate and harelip
45 Typhoid is caused by a species of
[1] Streptococcus
[2] Salmonella
[3] Staphylococcus
[4] Mycobacterium
Answer: Salmonella

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