If DNA is a book, then how is it read ... Three different types of RNA polymerase exist in eukaryotic cells, whereas bacteria have only one. In eukaryotes, RNA pol I transcribes the genes that ...

RNA polymerase cannot bind to promoter sequences and trigger transcription of the related genes. Thus, by selectively unfolding certain segments of their DNA at certain times, eukaryotic cells can ...

An analogous process occurs during chromosomal DNA replication, whereby the 5’-RNA segments that prime discontinuous synthesis of Okazaki fragments are excised, and the intervening gaps are filled in ...

The process of transcription elongation by RNA polymerase II (Pol II), in which Pol II travels along DNA and synthesizes RNA from DNA, is essential for proper gene expression in all eukaryotic cells.