MCQs - NCERT Solution of Class 12 Biology Health and Diseases

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

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 21^st 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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