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Assertion : Restriction endonuclease rec...

Assertion : Restriction endonuclease recognize short palindromic. Sequence and cut at specific sites.
Reason : When a restriction endonuclease acts on Palindrome, it cleaves both the the strands of DNA molecules.

A

If both the assertion and the reason are true and the reasons is a correct explanation of the assertion

B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reson is false

D

If both the assertion and reason are false

Text Solution

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The correct Answer is:
B
B
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Assertion : Restriction enzymes recongise palindromic sequences. Reason : Palindromic sequences read same in both directions of the two strand.

Each restriction endonuclease recognises specific palindromic .................... sequences in DNA.

Knowledge Check

  • Assertion (A) : Restriction endonucleases recognise short pallindromic sequence and cut at specific sites Reason (R) : When a restriction endonuclease acts on a pallindrome, it cleaves both the strands of DNA molecule.

    A
    A and R both correct and R is explanation of A
    B
    A is correct and R is wrong
    C
    A and R are both correct but R is not correct explanation of A
    D
    A is wrong and R is correct.

  • The restriction endonuclease enzyme binds to the DNA and cuts

    A
    Any one stand of the double helix
    B
    Each of the two strands at specific points in their base-sugar bonds
    C
    Each of the two strands at specific points in their base-phosphate bonds
    D
    Each of the two strands at specific points in their sugar-phosphate backbones

  • Identify the restriction endonuclease that will provide sticky ends of DNA strands :

    A
    Hind II
    B
    Sma I
    C
    Eco RI
    D
    Hae III

    • Similar Questions

    Explore conceptually related problems

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

    Restriction endonuclease ( EcoRI) enzyme cut the strand of DNA

    Restriction endonuclease HindII acts on a palindromic specific sequence of ..........base pair.

    Which restriction endonuclease enzyme would you use to cleave at the palindrome sequence of GAATCC?

    Assertion: Each restriction endonuclease recognises a specific pallindromic nucleotide sequence in the DNA Reason :The pallindrome in DNA is a sequence of base pairs that reads same on the two strands in a particular direction

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