MCQs - CBSE Solution of Class 12 Biology Health and Diseases

Questions

136 Incubation period of typhoid is

1 7 – 17 days

2 5 – 10 days

3 1 – 5 days

4 3 – 4 days

View Answer

Answer: 7 – 17 days

137 Metastasis is connected with

1 Benign tumour

2 Malignant tumour

3 Both 1 and 2

4 Crown gall tumour

View Answer

Answer: Malignant tumour

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138 HIV infects

1 Cytotoxic T-cells

2 Cells of nervous system

3 B-lymphocytes

4 Helper T-cells

View Answer

Answer: Helper T-cells

139 Western blot test is used for confirmation of

1 Typhoid

2 HIV

3 Cancer

4 Malaria

View Answer

Answer: HIV

140 A bacterial disease is

1 Leprosy

2 Polio

3 Chicken pox

4 Influenza

View Answer

Answer: Leprosy

141 Treatment of cancer is carried out by

1 Radiation therapy

2 Surgery

3 Immunotherapy

4 All of the above

View Answer

Answer: All of the above

142 Pneumonia that infects lung alveoli is caused by

1 Streptococcus species

2 Plasmodium species

3 Salmonella

4 Haemophilus

View Answer

Answer: Streptococcus species

143 Ringworm in humans is caused by

1 Fungi

2 Nematodes

3 Viruses

4 Bacteria

View Answer

Answer: Fungi

144 Widal test is based on

1 Serological interaction

2 Sonography

3 Endoscopy

4 Angiography

View Answer

Answer: Serological interaction

145 Most common type of Salmonella found in India is

1 S. arizonae

2 S. enteritidis

3 S. typhi

4 S. typhimurium

View Answer

Answer: S. typhi

146 Kwashiorkor, a disorder of children is due to

1 Protein/essential amino acid deficiency

2 Carbohydrate deficiency

3 Genetic problem

4 Vitamin deficiency

View Answer

Answer: Protein/essential amino acid deficiency

147 Diseases of the heart, joints and nervous system are called

1 communicable diseases.

2 degenerative diseases

3 deficiency diseases

4 allergies

View Answer

Answer: degenerative diseases

148 Frost bite is caused by

1 chemical agent

2 biological agent

3 nutrient agent

4 physical agent

View Answer

Answer: physical agent

149 Smoking may cause cancer of

1 Lung

2 Liver

3 Skin

4 Cervix

View Answer

Answer: Lung

150 Malaria is caused by _____.

1 Ascaris

2 Plasmodium

3 Entamoeba

4 Trypanosoma

View Answer

Answer: Plasmodium

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