Final answer:
Transcription is the process whereby a complementary mRNA is produced from a DNA template. It involves the enzyme RNA polymerase, which builds the mRNA using a DNA template through complementary base pairing. The mRNA then carries the genetic information from the DNA to the ribosomes for protein synthesis.
Step-by-step explanation:
The process whereby a complementary mRNA is produced from a DNA template is called transcription. Transcription is the synthesis of an mRNA molecule using a DNA template. It involves the enzyme RNA polymerase, which unwinds the DNA and builds the mRNA strand using complementary base pairing. The mRNA molecule carries the genetic information from the DNA to the ribosomes for protein synthesis.