1.

Distinguish between structural gene, regulatory gene and operator gene.

Answer»

Structure of the operon: Each operon is a unit of gene expression and regulation and consists of one or more structural genes and an adjacent operator gene that controls transcriptional activity of the structural gene.

  • The structural gene codes for proteins, rRNA and tRNA required by the cell.
  • Promoters are the signal sequences in DNA that initiate RNA synthesis. RNA polymerase binds to the promoter prior to the initiation of transcription.
  • The operators are present between the promoters and structural genes. The repressor protein binds to the operator region of the operon.


Discussion

No Comment Found

Related InterviewSolutions