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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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151 A droplet infection is
[1] Tetanus
[2] Pneumonia
[3] Syphilis
[4] Typhoid
Answer: Pneumonia
152 A person preparing food (e.g., Mary Milton) can be a major source of spread of disease
[1] Pneumonia
[2] Syphilis
[3] Typhoid
[4] Cancer
Answer: Typhoid

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153 Xerophthalmia in children and night blindness in adults is caused by the deficiency of
[1] Vitamin B
[2] Vitamin C
[3] Vitamin A
[4] Vitamin K
Answer: Vitamin A
154 AIDS was first reported in
[1] England
[2] U.S.A.
[3] France
[4] India
Answer: U.S.A.
1555 Insulin deficiency causes
[1] Diabetes insipidus
[2] Goitre
[3] Diabetes mellitus
[4] All of the above
Answer: Diabetes mellitus
156 HIV has a protein coat and a genetic material which is
[1] ss DNA
[2] ds DNA
[3] ss RNA
[4] ds RNA
Answer: ss RNA
157 Deficiency of vitamin C/Ascorbic acid causes
[1] Rickets
[2] Beri-beri
[3] Scurvy
[4] Night blindness
Answer: Scurvy
158 HIV reduces natural immunity of body by destroying
[1] B-lymphocytes
[2] T-lymphocytes
[3] Antibodies
[4] Erythrocytes
Answer: T-lymphocytes
159 Insulin deficiency causes
[1] Huntington’s chorea
[2] Cretinism
[3] Diabetes insipidus
[4] Diabetes mellitus
Answer: Diabetes mellitus
160 Generally streptococcus pneumoniae causes pneumonia but which bacteria is responsible for this diseare ?
[1] Pneumococcus
[2] Tuberculosis
[3] Haemophilus influenzae
[4] Salmonella typhi
Answer: Haemophilus influenzae
161 The spherical from of metacryptomezoites is called _____
[1] Sporozoites
[2] Trophozoite
[3] Trophozoite
[4] Gamato cyte
Answer: Cryptoschizont
162 Give the name of scientist who are concern with interferon word.
[1] Watson & Crick
[2] Khorana
[3] Luis pasteur & Stemberg
[4] Ellic isaks & jan lindenmen
Answer: Ellic isaks & jan lindenmen
163 Which one is odd ?
[1] Opium popy -gives pleasant feeling
[2] Claviceps Purpurea-Hallucinogenic
[3] Erythrolum Coca-Potent stimulating action
[4] Cannabis Sativa-give pain
Answer: Cannabis Sativa-give pain
164 Which one is odd ?
[1] Cannabinoids
[2] Ganj'a
[3] Charas
[4] Smack
Answer: Smack
165 Mark odd one
[1] Burning sensation in intestine
[2] Burning sensation in Alveoli
[3] Headache
[4] Increase in size of liver & spleen
Answer: Burning sensation in Alveoli

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