Explore a 10-minute video lesson on transcription and mRNA processing, part of Khan Academy's MCAT preparation series. Delve into the fundamentals of transcription, including the role of RNA polymerase, promoters, terminators, introns, and exons. Learn about the template strand, RNA polymerase complex, and mRNA processing. Access this free educational content to enhance your understanding of gene expression and regulation, and prepare for the MCAT exam. Continue your learning journey with related lessons on DNA replication speed and precision, as well as leading and lagging strands in DNA replication.