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Each restriction endonuclease recognises...

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

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**Step-by-Step Text Solution:** 1. **Understanding the Question**: The question asks about the type of sequences that restriction endonucleases recognize in DNA, specifically mentioning "palindromic" sequences. 2. **Defining Palindromic Sequences**: A palindromic sequence in DNA is one that reads the same forward and backward on complementary strands. For example, if one strand has the sequence 5' - GAATTC - 3', the complementary strand will read 3' - CTTAAG - 5', which is the reverse of the first strand. 3. **Role of Restriction Endonucleases**: Restriction endonucleases, also known as restriction enzymes, are proteins that cut DNA at specific sequences. Each enzyme recognizes a specific palindromic nucleotide sequence and makes a cut within that sequence. ...
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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.

Correct statement about restriction endonuclease. (I) It is the enzyme which cuts DNA at a particular point. (II) The first restriction endonuclease was Hindll. (III) Overall,900 restriction enzymes have been isolated from about 200 strains. (IV) Each restriction endonuclease recognizes a specific palindromic sequence.

Knowledge Check

  • Read the following five statements (A to E) and select the option with all correct statements : The cutting of DNA at specific locations became possible with molecular scissors'-restriction enzymes. Palindromes are groups of letters that form the same words read both forward and backward. Sexual reproduction preserves the genetic information, while asexual reproduction permits variation. DNA fragments are positively charged molecules , they can be separated by forcing them to move towards the cathode under an electric field. (E) Each restriction endonuclease recognises a specific palindromic nucleotide sequences in the DNA.

    A
    `(A), (D) and (E ) `
    B
    `(B), (C) and (E ) `
    C
    `(A),(C ) and (D) `
    D
    `(A), (B) and (E) `

  • 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

    A
    If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion
    B
    It both Assertion & Reason are True but Reason is not a correct explanation of the Assetion
    C
    If Assertion is True but the Reason is False
    D
    If both Assertion & Reason are false

  • Assertion : Restriction enzymes belong to a larger class of enymes called nucleases. Reason : Each restriction enzyme recognizes a specific palindromic nucleotidesequence in the DNA.

    A
    If both Assertion and Reason are true and the reason is the correct explanation of the assertion, then mark (1).
    B
    If both Assertion and Reason are true but the reason is not the correct explanation of the assertion then mark (2).
    C
    If Assertion is true but Reason are false, then mark(3).
    D
    If both Assertion and Reason are false, then mark(4).

    • Similar Questions

    Explore conceptually related problems

    Read the following statements and choose the option with incorrect statements. (a) Restriction enzymes are obtained from prokaryotes. (b) Restriction endonucleases cut DNA strands by breaking hydrogen bonds at specific points. (c) More than 230 restriction enzymes have been isolated from more than 900 strains of bacteria. (d) Each restriction enzyme recognizes a specific palindromic nucleotide sequence in DNA.

    Select the correct option regarding restriction endonuclease P. 900 restriction enzyme have been isolated from over 200 strains. Q. The first restriction exonuclease was Hind II. R. Each restriction endonuclease recognises same palindromic sequence .

    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.

    The restriction endonuclease enzyme binds to the DNA and cuts

    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.

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