The process of copying the genetic information from one strand of DNA into RNA is termed as transcription. The principle of complementarity of bases governs the process of transcription, also except that uracil comes in place of thymine.Study the complete transcription unit given below and answer the following questions:
Identify (C) and (D) in the diagram, mention their significance in the process of transcription.
Show Hint
RNA polymerase synthesizes the RNA strand using the template DNA strand, creating a complementary sequence that mirrors the coding strand (with uracil replacing thymine).
(C) Coding Strand: This is the DNA strand whose sequence is identical to the RNA transcript (except that RNA has uracil instead of thymine). It is not directly involved in RNA synthesis, but its sequence reflects the sequence of the newly synthesized mRNA.
- (D) Template Strand: This is the strand that is used by RNA polymerase to synthesize the complementary RNA strand. It is the strand that RNA polymerase binds to and reads in the 3' to 5' direction to create a complementary RNA strand in the 5' to 3' direction.
