A) Transcription - Writing information from DNA to tRNA.
B) Translation - Using information in mRNA to make protein.
C) Repressor protein - Binds to operator to stop enzyme synthesis.
D) Operon - Structural genes, operator and promoter.
Explanation
Transcription is the process in living cells in which the genetic information of DNA is transferred to mRNA as first step of gene expression. An operon consists of structural genes, promoter, operator and regulator gene.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.