DNA Transcription Process: Template Strand to mRNA Synthesis #75042 (License: Personal Use)

This diagram illustrates the molecular process of transcription, where RNA polymerase reads the DNA template strand (3′→5′) to synthesize a complementary mRNA strand (5′→3′). Nucleotide bases pair specifically-adenine (A) with uracil (U) in RNA, thymine (T) with adenine (A), cytosine (C) with guanine (G), and vice versa-ensuring accurate genetic information transfer. The helical structure is shown unzipped at the transcription bubble, highlighting active synthesis.

Used in biology textbooks, educational websites, and university lecture slides to explain gene expression fundamentals; targets students, educators, and curious learners seeking visual understanding of transcription.