12th Class Biology Sample Paper Biology - Sample Paper-10

  • question_answer
    Discuss about phenylketonuria.
    OR
    Why 3rd base in codon is called wobble position?
     

    Answer:

    Phenylketonuria is inborn error of metabolism and autosomal recessive trait. In this disorder, the functional enzymes is lacking & cause visible phenotypic changes.
    OR
    Named after discoverer, the first 2 bases of tRNA anticodon pairs specifically with first 2 bases of mRNA codons, but 3rd base can pair with unusual bases (wobble hypothesis).
     


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