Q. Which one of the following is wrongly matched ?
A) Transcription – Writing information from DNA to t-RNA
B) Translation – Using information in m-RNA to make protein
C) Repressor protein – Binds to operator to stop enzyme synthesis
D) Operon – Structural genes, operator and promoter
Explanation
[Solution] The official key gives (4): an operon also includes the regulator gene. Many solution books instead give (1), since transcription is usually described as DNA → mRNA, though tRNA is also made by transcription. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.