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.
Basically, the process involves transcription of a genetic sequence of DNA into a complementary mRNA strand, and then translation of the mRNA strand by tRNA and ribosomes (and, of course enzymes) to produce a chain of amino acids (polypeptide chain) which is then modified into a protein.he transcription of an mRNA strand is based on complementary base-pairing of DNA and mRNA nucleotides (based on the ârules of base pairingâ), and the translation of mRNA is based on complementary base-pairing of codons of mRNA and anticodons of tRNA.