Flow of food energy up the trophic levels

TLS Online TPP Program

#Id: 2912

#Unit 3. Fundamental Processes

Each DnaB activates a DnaG primase-in one case to initiate the leading strand, and in the other to initiate the first Okazaki fragment of the lagging strand

TLS Online TPP Program

#Id: 2913

#Unit 3. Fundamental Processes

Gyrase, a type II topoisomerase, provides a swivel that allows one DNA strand to rotate around the other.

TLS Online TPP Program

#Id: 2914

#Unit 3. Fundamental Processes

The protein single-strand binding protein (SSB) stabilizes the single-stranded DNA as it is formed and modulates the helicase activity.

TLS Online TPP Program

#Id: 2915

#Unit 3. Fundamental Processes

The length of duplex DNA that usually is unwound to initiate replicati011 is probably <60 bp.

TLS Online TPP Program

#Id: 2916

#Unit 3. Fundamental Processes

HU has the capacity to bend DNA, and is involved in building the structure that leads to formation of the open complex.

TLS Online TPP Program

#Id: 2917

#Unit 3. Fundamental Processes

Input of energy in the form of ATP is required at several stages for the prepriming reaction, and it is required for unwinding DNA.