Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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51.

Which of the following is not an autoimmune disease?

  • Psoriasis

  • Rheumatoid arthritis

  • Vitiligo

  • Alzheimer's disease


D.

Alzheimer's disease

Rheumatoid arthritis is an autoimmune disorder in which antibodies are produced against the synovial membrane and cartilage.

Vitiligo causes white patches on skin also characterised as the autoimmune disorder.

Psoriasis is a skin disease that causes itchy or sore patches of thick red skin and is also autoimmune.

Alzheimer's disease is a neurodegenerative disorder due to deficiency of neurotransmitter acetylcholine.


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52.

The similarity of bone structure in the forelimbs of many vertebrates is an example of

  • Homology

  • Analogy

  • Adaptive radiation

  • Convergent evolution


53.

Which of the following characteristics represent ‘Inheritance of blood groups’ in humans?

a. Dominance
b. Co-dominance
c. Multiple allele
d. Incomplete dominance
e. Polygenic inheritance

  • b, c and e

  • a, b and c

  • a, c and e

  • b, d and e


54.

In which disease does mosquito-transmitted pathogen cause chronic inflammation of lymphatic vessels?

  • Elephantiasis

  • Ascariasis

  • Amoebiasis

  • Ringworm disease


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55.

All of the following are included in ‘ex-situ conservation’ except

  • Wildlife safari parks

  • Sacred groves

  • Seed banks

  • Botanical gardens


56.

Which part of poppy plant is used to obtain the drug “Smack”?

  • Flowers

  • Latex

  • Leaves

  • Roots


57.

In a growing population of a country,

  • pre-reproductive individuals are more than the reproductive individuals

  • reproductive individuals are less than the post-reproductive individuals.

  • pre-reproductive individuals are less than the reproductive individuals.

  • reproductive and pre-reproductive individuals are equal in number.


58.

Which one of the following population interactions is widely used in medical science for the production of antibiotics?

  • Commensalism

  • Mutualism

  • Amensalism

  • Parasitism


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59.

Match the items given in Column I with those in Column II and select the correct option given below :

Column I Column II
a Eutrophication i UV-B radiation
b Sanitary landfill ii Deforestation
c Snow blindness iii Nutrient enrichment
d Jhum cultivation iv Waste disposal

  • a b c d
    ii i iii iv
  • a b c d
    i iii iv ii
  • a b c d
    i ii iv iii
  • a b c d
    iii iv i ii

60.

Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively?

  • Inflammation of bronchioles; Decreased respiratory surface

  • Increased number of bronchioles;Increased respiratory surface

  • Decreased respiratory surface;Inflammation of bronchioles

  • Increased respiratory surface;Inflammation of bronchioles


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