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An example of Restriction Endonuclease...

An example of Restriction Endonuclease ______

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A restriction enzyme or restriction endonuclease is an enzyme that cleaves DNA into fragments at or near specific recognition sites within the molecule known as restriction sites.
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Eco RI is the name of a restriction endonuclease. What does 'E' , 'co', 'R' and 'I' mean ?

Which of the following is not a source of restriction endonuclease ? (a) Haemophilus influenzea (b) Escherichia coil (c) Entamoeba coil (d) Bacillus amyloliquifaciens

Knowledge Check

  • Restriction endonucleases are enzymes which

    A
    Make cuts at specific positions within the DNA molecule.
    B
    Recognize a specific nucleotide sequence for binding of DNA ligase.
    C
    Restrict the action of the enzyme DNA polymerase.
    D
    Remove nucleotides from the ends of the DNA molecule.

  • Restriction enzymes are

    A
    Not always required in genetic engineering
    B
    Essential tools in genetic engineering
    C
    Nucleases that cleave DNA at specific sites
    D
    both b and c

    • Similar Questions

    Explore conceptually related problems

    Restriction endonucleases are enzymes which

    Define endonucleases.

    Read the given statements and select the correct option, Statement 1 : Restriction endonuclease enzymes recognise a specific palindromic nucleotide sequence in the DNA Statement 2: Restriction endonuclease enzymes are called as molecular scissors or biological scissors.

    What is the naming procedure for restricition endonuclease? Give an example.

    Assertion (A): Arabidopsis plant chromosome have more repeats of TTTAGGG nucleotide sequence in the telomers. Reason (R ): Restriction endonuclease enzyme is used in the formation of such a nucleotide sequence.

    Read the following statements and select the correct ones. (i) Same kind of sticky ends are produced when a DNA has been cut by different restriction enzymes. (ii) Exonucleases make cuts at specific positions within the DNA. (iii) Hind ll was the first restriction endonuclease to be isolated. (iv) A bacteriophage has the ability to replicate within bacterial cells by integrating its DNA with bacterial DNA. (v) Presence of more than one recognition sites for a enzyme within the vector facilitates the gene cloning.

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