NCERT Multiple Choice Questions and Answers of Biology from Chapter Health and Diseases | Health and Diseases Questions and Answers of Class 12 Biology | Biology - Health and Diseases MCQs | NCERT Solution of Class 12 Biology Health and Diseases

Questions

31 Vector host of malaria is

1 Female Anopheles mosquito

2 Male Anopheles mosquito

3 Aedes mosquito

4 Culex mosquito Answer

View Answer

Answer: Female Anopheles mosquito

32 Which one of the following diseases is caused by bacteria

1 Rabies

2 Small pox

3 Measles

4 Tuberculosis

View Answer

Answer: Tuberculosis

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33 Which of the following is fourth dimension of health?

1 physical

2 mental

3 mental

4 spiritual

View Answer

Answer: spiritual

34 Itai-Itai disease is caused by _____.

1 Mercury

2 Lead

3 Cadmium

4 Iron

View Answer

Answer: Cadmium

35 Anaplasia is

1 Transfer of cancer cells

2 Formation of tumour

3 Loss of cells adherence and cell differentiation

4 Action of lysosomes over cells

View Answer

Answer: Loss of cells adherence and cell differentiation

36 Heamophilia disease can transfer through ______.

1 Heredity

2 Metal

3 Pollutant

4 Vector

View Answer

Answer: Heredity

37 AIDS virus spreads in the body through

1 Suppressor T-cells

2 Carrier T-cells

3 Helper T-cells

4 Killer T-cells

View Answer

Answer: Helper T-cells

38 The pathogen of the typhoid is directly transmitted through

1 urine

2 water

3 blood

4 cerebrospinal

View Answer

Answer: water

39 Swine Flu is caused by

1 HIV

2 HINI

3 Herpes zostr

4 Mumps virus

View Answer

Answer: HINI

40 Beri-Beri is caused by the deficiency of ______.

1 Vitamin D

2 Vitamin B

3 Vitamin C

4 Vitamin E

View Answer

Answer: Vitamin B

41 Sarcoma is cancer of

1 Epithelial tissue

2 Endodermal tissue

3 Ectodermal tissue

4 Mesodermal tissue

View Answer

Answer: Mesodermal tissue

42 AIIDs spreads through

1 Blood transfusion

2 Placental transmission

3 Sexual contact

4 all of the above

View Answer

Answer: all of the above

43 Which of the following is not congenital disease?

1 sickle cell anaemia

2 albinism

3 haemophilia

4 hepatitis

View Answer

Answer: hepatitis

44 Congenital diseases caused by environmental factors are

1 PKU and sickle cell anaemia

2 Down’s syndrome and Turner’s syndrome

3 Haemophilia and colour blindness

4 Cleft palate and harelip

View Answer

Answer: Cleft palate and harelip

45 Typhoid is caused by a species of

1 Streptococcus

2 Salmonella

3 Staphylococcus

4 Mycobacterium

View Answer

Answer: Salmonella

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