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Write the two specific codons that a tra...

Write the two specific codons that a translational unit of mRNA is flanked by one on either sides.

Text Solution

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Two specifie condons are :
(i) Start condon (AUG)
(ii) Stop condon (UAG or UAA or UAA).
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Consider the following statements w.r.t. a translational unit in mRNA a. a . UTRs are present after start codon and before stop codons. b. It is the sequence of RNA that is flanked by start codon (AUG) and stop codon. C. It codes for a polypeptide. d. UTRs are needed for efficient translation process.

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Knowledge Check

  • Assertion : Untranslated regions are sequences of RNA before initiation codon and after termination codon. Reason : Untranslated regions provide stability to mRNA and also increase translational efficiency.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion
    C
    If assertion is true but reason is false
    D
    if both assertion and reason are false.
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