Q. Whose experiments cracked the DNA and discovered unequivocally that a genetic code is a triplet?
A) Hershey and Chase
B) Morgan and Sturtevant
C) Beadle and Tatum
D) Nirenberg and Mathaei
Explanation
[Solution from source] Nirenberg and Matthaei used cell-free protein synthesis with synthetic RNA (poly-U giving polyphenylalanine), which helped decode the codons and confirm the triplet code. Hershey and Chase proved DNA is the genetic material, not the nature of the code. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.