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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.
121
A disease transferred from mother to child through placenta is
[1]
German measles
[2]
Syphilis
[3]
AIDS
[4]
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
124
AIDS is caused by
[1]
Fungus
[2]
Virus
[3]
Bacterium
[4]
Helminth
125
Iodine deficiency causes ______ disease.
[1]
Goiter
[2]
Kwashiorkar
[3]
Scurvy
[4]
Anaemia
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
128
Human papilloma virus may cause cancer of
[1]
Stomach
[2]
Uterine cervix
[3]
Liver
[4]
Urinary bladder
129
Carcinoma is cancer of
[1]
Epithelial cells
[2]
Connective tissue cells
[3]
Bone cells
[4]
Blood 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
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
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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