Fatty acids from Glycolipids and phospholipids, on the other hand, have two hydrophobic chains that are too bulky to fit into the a spherical shape as micelles do. Thus, they preferred to form glycolipids and phospholipids as lipid bilayers, which are discussed in the next section.
DNA Helicase-The enzyme responsible for separating the two strands of DNA in a helix so that they can be copied during DNA replication. DNA Ligase-The enzyme responsible for sealing together breaks or nicks in a DNA strand. Responsible for patching together Okazaki fragments on the lagging strand during DNA replication.
In eukaryotes, transcription is performed by three types of RNA polymerases, each of which needs a special DNA sequence called the promoter and a set of DNA-binding proteins -- transcription factors âto initiate the process. RNA polymerase I is responsible for transcription of ribosomal RNA (rRNA) genes.n eukaryotes, transcription is performed by three types of RNA polymerases, each of which needs a special DNA sequence called the promoter and a set of DNA-binding proteins -- transcription factors âto initiate the process. RNA polymerase I is responsible for transcription of ribosomal RNA (rRNA) genes.