St. Thomas, St. John, and St. Croix-the three islands known to many as the U.S. Virgin Islands, and the reason millions of travelers head to the Caribbean every year.
This copying process is called transcription and the copy is mRNA. Transcription takes place in the cytoplasm (prokaryote) or in the nucleus (eukaryote). The transcription is performed by an enzyme called RNA polymerase. To make mRNA, RNA polymerase: 1  Binds to the DNA strand at a specific sequence of the gene called a promoter. 2  Unwinds and unlinks the two strands of DNA. 3  Uses one of the DNA strands as a guide or template.
During transcription the gene (double-stranded DNA) is copied or transcribed into an virtually identical single-stranded messenger RNA molecule (mRNA). In eukaryotes this process occurs in the nucleus. Transcription: 1) RNA polymerase transcribes DNA to make messenger RNA (mRNA).2) The mRNA sequence (dark red strand) is complementary to the DNA sequence (blue strand). Translation: 3) On ribosomes, transfer RNA (tRNA) helps convert mRNA into protein.n eukaryotes this process occurs in the nucleus. Transcription: 1) RNA polymerase transcribes DNA to make messenger RNA (mRNA). 2) The mRNA sequence (dark red strand) is complementary to the DNA sequence (blue strand).