Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Molecular Basis of Inheritance question

2009 · Q73
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Biology
  4. /Molecular Basis of Inheritance
  5. /2009 · Q73

Molecular Basis of Inheritance question

2009 · Q73

NEETBiologyMolecular Basis of InheritanceMCQ+4 / −1
Whose experiments cracked the DNA and discovered unequivocally that a genetic code is a "triplet" ?
  1. A
    Nirenberg and Mathaei
  2. B
    Morgan and Sturtevant
  3. C
    Hershey and Chase
  4. D
    Beadle and Tatum
View written solutionFree

Correct answer: A

Nirenberg and Mathaei (1961) experimentally proved that a single amino acid is determined by a sequence of three nitrogen bases. The sequence of three nitrogen bases determining a single amino acid is called a triplet code. Nirenberg and Mathaei experiments cracked the DNA and discovered unequivocally that a genetic code is a triplet.

PreviousNext

More from Molecular Basis of Inheritance

  • Removal of introns and joining the exons in a defined order in a transcription unit is called :2009 · MCQ
  • What is not true for genetic code?2009 · MCQ
  • In the DNA molecule:2008 · MCQ
  • Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?2008 · MCQ
  • Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid ?2008 · MCQ
  • Polysome is formed by2008 · MCQ
  • One gene-one enzyme hypothesis was postulated by -2006 · MCQ
  • One turn of the helix in a B-form DNA is approximately -2006 · MCQ