Transcription and RNA Processing in Eukaryotes & Transcription and Post-Transcription Modification

In eukaryotic cells five different types of RNA polymerase are used to form different products. For example: in RNA polymerase I it works in the nucleus which has a role in forming ribosomal RNA products. Meanwhile, RNA polymerase II works in the nucleus and is responsible for transcription which will form pre-mRNA. Meanwhile, polymerase III works in the nucleus to perform transcription which produces tRNA. Meanwhile, polymerase IV plays a role in forming siRNA-s, while RNA polymerase V is located...