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Molecular Basis of Inheritance Test - 80

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Molecular Basis of Inheritance Test - 80
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Sometimes the starting codon is GUG in place of AUG, GUG normally stands for ___________.
    Solution
    In, DNA the start codon initiates the translation of the first amino acid in the polypeptide chain. The most common start codon is AUG and codes for methionine. GUG is an efficient initiation codon or start codon and codes for Valine. AUG is the start codon 83% of the time and GUG 14% of the time
    So, the correct answer is "A Valine".
  • Question 2
    1 / -0
    How many among the following organisms hve linear ds DNA as their genetic material?
    Homo sapiens, Escherichia coil, Drosophila, $$\phi \times 174$$ bacteriophage
    Solution
    All eukaryotes have double-stranded DNA which is linear.
    Also, Bacteriophage and E. coli have ds DNA.
    So, the correct option is '4'.
  • Question 3
    1 / -0
    In bacteria, DNA has no free ends and is not associated with
  • Question 4
    1 / -0
    In E.coil the replication of DNA occurs at:-
  • Question 5
    1 / -0
    The two strands of DNA are?
  • Question 6
    1 / -0
    If heat killed S-III and live R-II are mixed then?
  • Question 7
    1 / -0
    Which of the following is a homopolymer?
  • Question 8
    1 / -0
    The following picture depicts the DNA .What is the structure of DNA ?

    Solution
    DNA is a long polymer of deoxyribonucleotides that has a double helical structure with a sugar-phosphate backbone where nitrogenous bases project inside and are paired together with the help of hydrogen bonds, that forms the double stranded structure of the DNA.
    So, the correct option is 'Double helix'
  • Question 9
    1 / -0
    Read the given statement and statements and select the correct option.
    Statement 1: The alien DNA is cloned in the host organism by integrating it in host DNA.
    statement II: The  alien DNA has specific DNA sequence called origin of replication, which help it join to host genome.
  • Question 10
    1 / -0
    Which of the following type of DNA is commonly present in the cells of mammals? 
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