NEET Biology NEET PYQ-Cell The Unit Of Life

  • question_answer
    'Signal hypothesis' for the biosynthesis of secretory type of proteins was proposed by: [AIPMT 2000]

    A) Camillo Golgi

    B) Blobel and Sabatini

    C) Baltimore

    D) Sheeler and Bianchi

    Correct Answer: B

    Solution :

    [B] A variety of proteins are synthesized on ribosomes. However, these have different destinations. David Sabatini and G. Blobel proposed 'signal sequence' hypothesis according to which a short amino acid sequence at the amino terminus of a newly synthesized polypeptide directs a protein to its appropriate location sequence.


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