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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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121 A disease transferred from mother to child through placenta is
[1] German measles
[2] Syphilis
[3] AIDS
[4] all of the above
Answer: all of the above
122 Which is mismatched?
[1] Vitamin D – Rickets
[2] Vitamin C – Scurvy
[3] Vitamin A – Xerophthalmia
[4] Vitamin D – Rickets
Answer: Vitamin D – Rickets

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123 HIV is a member of a group of viruses called
[1] Bacteriophages
[2] Lysogenic viruses
[3] Retroviruses
[4] Gemini viruses
Answer: Retroviruses
124 AIDS is caused by
[1] Fungus
[2] Virus
[3] Bacterium
[4] Helminth
Answer: Virus
125 Iodine deficiency causes ______ disease.
[1] Goiter
[2] Kwashiorkar
[3] Scurvy
[4] Anaemia
Answer: Goiter
126 What is correct?
[1] Malignant tumours may exhibit metastasis
[2] Patients who have undergone surgery are given cannabinoids to relieve pain
[3] Benign tumours show metastasis
[4] Heroin accelerates body functions
Answer: Malignant tumours may exhibit metastasis
127 Thypoid fever is caused by
[1] Salmonella typhi
[2] Vibrio cholerae
[3] Treponema pallidium
[4] Trichophyton tonsurans
Answer: Salmonella typhi
128 Human papilloma virus may cause cancer of
[1] Stomach
[2] Uterine cervix
[3] Liver
[4] Urinary bladder
Answer: Uterine cervix
129 Carcinoma is cancer of
[1] Epithelial cells
[2] Connective tissue cells
[3] Bone cells
[4] Blood cells
Answer: Epithelial cells
130 Down’s syndrome is caused by
[1] Monosomy of 21 chromosome
[2] Trisomy of 21st chromosome
[3] Deletion in chromosome
[4] Duplication of chromosome
Answer: Trisomy of 21st chromosome
131 Which one of the following is transplacental disease
[1] Kala-azar
[2] German measles
[3] Rabies
[4] Scabies
Answer: German measles
132 Some protection is provided against carcinogens by
[1] Penicillic acid
[2] Affatoxin
[3] Streptomycin
[4] Tocopherol/Vit. E
Answer: Tocopherol/Vit. E
133 Benign tumour is the one which
[1] Shows metastasis
[2] Differentiated and capsulated
[3] Undifferentiated and non-capsulated
[4] Differentiated and non-capsulated
Answer: Differentiated and capsulated
134 Disease existing at or before birth is
[1] Congenital
[2] Communicable
[3] Noncommunicable
[4] none of these
Answer: Congenital
135 Elephantiasis is caused by
[1] Dracunculus medinensis
[2] Entrobius vermicularis
[3] Wuchereria bancrofti
[4] None of the above
Answer: Wuchereria bancrofti

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