DNA And Genetic Information Quiz

81 Questions | Total Attempts: 69

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DNA And Genetic Information Quiz

Do you know what is a nucleotide? What is the transcription of DNA and RNA? What is the structure of DNA like? Take our online quiz to test yourself and learn trivia as you play.


Questions and Answers
  • 1. 
    What are the characteristics of rough pneumococci strain? 
    • A. 

      Non-capsulated and pathogenic

    • B. 

      Non-capsulated and non-pathogenic

    • C. 

      Capsulated and pathogenic

    • D. 

      Capsulated and non-pathogenic

  • 2. 
    In Griffith’s experiment which of the following strains of pneumococci was isolated from dead mice?
    • A. 

      Living rough cells

    • B. 

      Dead rough cells

    • C. 

      Living smooth cells

    • D. 

      Dead smooth cells

  • 3. 
    Which of the following things was identified as the transforming principle in Griffith experiment?
    • A. 

      DNA

    • B. 

      RNA

    • C. 

      Proteins

    • D. 

      Carbohydrates

  • 4. 
    When DNA replication starts, .......
    • A. 

      The phosphodiester bonds between the adjacent nucleotides break.

    • B. 

      The bonds between the nitrogen base and deoxyribose sugar break.

    • C. 

      The leading strand produces short fragments.

    • D. 

      The hydrogen bonds between the nucleotides of two strand break.

  • 5. 
    The elongation of the produced strand during DNA replication .......
    • A. 

      Progresses away from the replication fork.

    • B. 

      Is done in the 3′ to 5′ direction

    • C. 

      Produces short fragments.

    • D. 

      Depends on the action of DNA polymerase.

  • 6. 
    During DNA replication ....
    • A. 

      The lagging strand requires a slight delay before undergoing replication.

    • B. 

      The leading strand requires a slight delay before undergoing replication.

    • C. 

      The DNA ligase unwinds the DNA double helix.

    • D. 

      The complementary strand (in the 5'-3' order) for the DNA segment AGC will be GCA.

  • 7. 
    Hershey and Chase experiment confirms that ......
    • A. 

      DNA is always formed from DNA in semiconservative manner.

    • B. 

      DNA is the genetic material and not protein.

    • C. 

      Radioactive Phosphorus was only found in surrounding.

    • D. 

      DNA and Protein both enter in bacterial cell progeny.

  • 8. 
    Which of the following has the self-repairing mechanisms?
    • A. 

      DNA and RNA

    • B. 

      DNA, RNA and protein

    • C. 

      Only DNA

    • D. 

      DNA and proteins

  • 9. 
    How did Rosalind Franklin take pictures of the shape of DNA?
    • A. 

      X-Ray diffraction

    • B. 

      X-Ray microscopy Scanning

    • C. 

      Electron Microscope

    • D. 

      Electromagnetic radiation

  • 10. 
    How did Rosalind Franklin's photo of DNA affect the work of Watson and Crick?
    • A. 

      It was used to determine the physical structure of DNA

    • B. 

      It was used to identify the four bases that make up DNA

    • C. 

      It was used to determine the theory of independent assortment

    • D. 

      It was used to show DNA was the molecule of inheritance

  • 11. 
    When a DNA molecule is described as replicating bidirectionally, that means that it has two ......
    • A. 

      Molecules.

    • B. 

      Independently replicating segment.

    • C. 

      Origins.

    • D. 

      Replication forks.

  • 12. 
    A nucleotide of DNA may contain ________.
    • A. 

      Ribose, uracil, and a phosphate group

    • B. 

      Deoxyribose, uracil, and a phosphate group

    • C. 

      Deoxyribose, thymine, and a phosphate group

    • D. 

      Ribose, thymine, and a phosphate group

  • 13. 
    In double helix of DNA, the two DNA strands are .......
    • A. 

      Coiled around each other

    • B. 

      Coiled around a common axis

    • C. 

      Coiled with different width

    • D. 

      Coiled over protein sheath

  • 14. 
    A segment of DNA has 120 adenine and 120 cytosine bases. The total number of nucleotides present in the segment is .....
    • A. 

      120

    • B. 

      240

    • C. 

      360

    • D. 

      480

  • 15. 
    Nucleotides have a nitrogenous base attached to a sugar at the …....
    • A. 

      1' carbon

    • B. 

      2' carbon

    • C. 

      3' carbon

    • D. 

      5' carbon

  • 16. 
    A nucleotide has ……….
    • A. 

      Three phosphoric acid molecules

    • B. 

      Two sugar molecules + phosphoric acid

    • C. 

      One pentose sugar

    • D. 

      Two phosphoric acid + nitrogenous base

  • 17. 
    Each half turn of DNA molecule contains _______ nitrogenous bases.
    • A. 

      5

    • B. 

      10

    • C. 

      20

    • D. 

      25

  • 18. 
    How many turns does a molecule of DNA consist of 2000 base pairs have?
    • A. 

      20

    • B. 

      100

    • C. 

      200

    • D. 

      400

  • 19. 
    For a DNA molecule, which is not true?
    • A. 

      A + G = C + T

    • B. 

      A / T = G / C

    • C. 

      (A +T) / (G + C) = 1

    • D. 

      (A + G) / (C + T) =1

  • 20. 
    DNA is composed of repeating units of ………
    • A. 

      Ribonucleosides

    • B. 

      Ribonucleotides

    • C. 

      Deoxyribonucleosides

    • D. 

      Deoxyribonucleotides.

  • 21. 
    Which of the following nucleotide sequences contains 4 different types of bases?
    • A. 

      GATGAATGT

    • B. 

      GCCAGAUAA

    • C. 

      UAGAGGUAA

    • D. 

      TCAACTTACA

  • 22. 
    Which of the following is true about the linkage between two adjacent nucleotides?
    • A. 

      5’-phosphate group of one nucleotide unit is joined to the 3’-hydroxyl group of the other nucleotide.

    • B. 

      3’-phosphate group of one nucleotide unit is joined to the 5’-hydroxyl group of the other nucleotide.

    • C. 

      5’-phosphate group of one nucleotide unit is joined to the 5’-hydroxyl group of the other nucleotide.

    • D. 

      3’-phosphate group of one nucleotide unit is joined to the 3’-hydroxyl group of the other nucleotide.

  • 23. 
    In the transcription of RNA from DNA, which of the following statements is true?
    • A. 

      The template strand DNA is identical to the sequence of the RNA transcript.

    • B. 

      The template strand DNA is complementary to the sequence of the RNA transcript.

    • C. 

      The template strand DNA is identical to the sequence of the complementary strand DNA.

    • D. 

      The template strand DNA runs parallel to the sequence of the RNA transcript.

  • 24. 
    What is the complementary DNA strand that is created from this template during replication? 3’ T A C C G A T T G C A 5’
    • A. 

      5’TAGGCATTGCA 3’

    • B. 

      5’TGCAATGCCTA 3’

    • C. 

      5’AUGGCUAACGU 3’

    • D. 

      5’ATGGCTAACGT 3’

  • 25. 
    Which association between complementary bases would require the most energy to break?
    • A. 

      A:U

    • B. 

      A:T

    • C. 

      G:C

    • D. 

      All require the same energy

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