The first step to the synthesis of a polypeptide is called transcription. Transcription is when DNA becomes RNA, which can be translated into protein. -Transcription is when DNA becomes RNA, which can be translated into protein. -The process of transcription starts with the help of an enzyme called RNA polymerase II (Pol II). Pol II binds to a promoter sequence in DNA and releases RNAPol I from this site. The part that remains at the promoter, known as Pribnow Box, attracts more proteins such as helicases for unwinding the DNA strand. This allows access to start transcribing it into messenger RNA. Each time Pol II transcribes one piece of information on its own section called exon in mRNA by cutting out introns while reading along double stranded helixes’ side or top loops until completing entire message then moves back up other side to start at beginning. -The process of transcription starts with the help of an enzyme called RNA polymerase II (Pol II). Pol II binds to a promoter sequence in DNA and releases RNAPol I from this site. The part that remains at the promoter, known as Pribnow Box, attracts more proteins such as helicases for unwinding the DNA strand. This allows access to start transcribing it into messenger RNA. Each time Pol II transcribes one piece of information on its own section called exon in mRNA by cutting out introns while reading along double stranded helixes’ side or top loops until completing entire message then moves back up other side to start at beginning. Maintaining genetic stability requires
