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MCQ for grade 12 on griffith experiment, macleod and hershey and chase

Quiz by Prashansa Raizada

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10 questions
Show answers
  • Q1
    What was the main purpose of the MacLeod and McCarty experiment?
    To explore the function of RNA in bacterial transformation.
    To compare the efficiency of transformation between different species of bacteria.
    To investigate the role of proteins in bacterial transformation.
    To determine whether DNA is the genetic material responsible for transformation in bacteria.
    To study the replication of DNA in bacterial cells.
    30s
  • Q2

    What was the primary focus of Griffith's transforming experiment?

     Investigating the role of bacteria in diseases

     Demonstrating bacterial transformation

     identifying the structure of DNA

    Discovering the genetic code

    30s
  • Q3

    Which of the following conclusions was drawn from the Hershey and Chase experiment?

    Proteins are the genetic material in viruses

    DNA is the genetic material in viruses

    RNA is the genetic material in viruses

    Lipids are the genetic material in viruses

    30s
  • Q4

    Which of the following pairs of scientists confirmed that DNA, not protein, carries genetic information?

    Hershey and Chase

    Mendel and Darwin

    Watson and Crick

    Avery and MacLeod

    30s
  • Q5

    What did the Griffith experiment reveal about bacterial transformation?

    Bacterial colonies could be transformed into viruses 

    Heat could destroy the transforming factor

    DNA was not involved in transformation

    Genetic information could be transferred between bacteria

    30s
  • Q6

    Which of the following nitrogenous bases is NOT found in DNA? 

    Adenine (A) 

    Uracil (U)

    Thymine (T)

    Cytosine (C) 

    30s
  • Q7

    The DNA double helix is stabilized by which type of chemical bonds between complementary base pairs?

    Ionic bonds 

    Van der Waals forces

    Covalent bonds 

    Hydrogen bonds 

    30s
  • Q8

    What is the role of histone proteins in DNA packaging?

    They condense and package DNA into chromatin. 

    They serve as enzymes for DNA replication. 

    They help maintain the stability of the DNA double helix. c) They condense and package DNA into chromatin. d) They decode the genetic information in DNA.

    They decode the genetic information in DNA.

    30s
  • Q9

    In eukaryotic cells, DNA is most tightly packaged during which phase of the cell cycle?

    Mitosis

    S phase 

    G1 phase 

    G2 phase 

    30s
  • Q10

    Which of the following base pairs is found in DNA?

    Adenine-Guanine 

    Adenine-Thymine

    Adenine-Cytosine 

    Adenine-Uracil 

    30s

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