AP BIOLOGY

Detailed explanation-1: -The Escherichia coli RNA polymerase (RNAP) is a multi-subunit enzyme composed of five subunits including (two copies), , ’ and subunits. These five subunits form the RNAP core enzyme responsible for RNA synthesis using DNA as template and ribonucleotide (rNTP) as substrate.

Detailed explanation-2: -Since primase produces RNA molecules, the enzyme is a type of RNA polymerase. Primase functions by synthesizing short RNA sequences that are complementary to a single-stranded piece of DNA, which serves as its template.

Detailed explanation-3: -RNA polymerase (green) synthesizes RNA by following a strand of DNA. RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription.

Detailed explanation-4: -Using a DNA template, RNA polymerase builds a new RNA molecule through base pairing. For instance, if there is a G in the DNA template, RNA polymerase will add a C to the new, growing RNA strand. RNA polymerase synthesizes an RNA strand complementary to a template DNA strand.