General Science MCQs – Test 6

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General Science - Test 6

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General Science – Test 6

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1. Answered
2. Review

1. Question 1 of 10

   1. Question

   1 points

   Respiratory centre is located in

   • Cerebrum
   • Medulla oblongata
   • Cerebellum
   • Olfactory lobes
   Correct
   

   Incorrect
   
2. Question 2 of 10

   2. Question

   1 points

   Polymerase chain reaction (PCR) is used for

   • Making more copies of RNA
   • Making more copies of proteins
   • Making more copies of DNA
   • Making more copies of polypeptides
   Correct
   

   Incorrect
   
3. Question 3 of 10

   3. Question

   1 points

   HIV is a

   • Rhino virus
   • Toga virus
   • Retro virus
   • Reo virus
   Correct
   

   Incorrect
   
4. Question 4 of 10

   4. Question

   1 points

   Phonoreceptors are located in

   • Middle ear
   • Internal ear
   • Tympanum
   • Eyes
   Correct
   

   Incorrect
   
5. Question 5 of 10

   5. Question

   1 points

   Citrus fruits are rich in

   • Retinol
   • Ascorbic acid
   • Thymine
   • Riboflavin
   Correct
   

   Incorrect
   
6. Question 6 of 10

   6. Question

   1 points

   Catabolism is

   • Synthesis as well as breakdown of complex molecules
   • Synthesis of complex molecules
   • Breakdown of complex molecules into smaller molecules
   • Synthesis of complex substances of high molecular weight
   Correct
   

   Incorrect
   
7. Question 7 of 10

   7. Question

   1 points

   The percentage of carbon dioxide in the atmosphere is

   • 0.0034%
   • 0.034%
   • 0.34%
   • 0.04%
   Correct
   

   Incorrect
   
8. Question 8 of 10

   8. Question

   1 points

   The earth’s surface is protected from the harmful UV rays of the sun by

   • Ozone layer
   • Carbon dioxide layer
   • Carbon monoxide layer
   • Troposphere
   Correct
   

   Incorrect
   
9. Question 9 of 10

   9. Question

   1 points

   Which of the following is a biodegradable pollutant?

   • DDT
   • Domestic wastes
   • Pesticides
   • Mercury salts
   Correct
   

   Incorrect
   
10. Question 10 of 10

    10. Question

    1 points

    Nucleic acids are polymers of

    • Proteins
    • Nucleosides
    • Nucleotides
    • Amino acids
    Correct
    

    Incorrect
    

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