Transcription:The process by which genetic information encoded in DNA is copied into a complementary RNA strand by RNA polymerase.
mRNA (Messenger RNA): A type of RNA synthesized from DNA in the cell nucleus that carries genetic information from the nucleus to the ribosome for protein synthesis.
Nucleotide: The basic building block of nucleic acids (RNA and DNA), consisting of a nitrogenous base, a sugar molecule, and one or more phosphate groups