The bacterium Ralstonia eutropha has been used as a model organism for the commercial production of PHAs.

TLS Online TPP Program

#Id: 9600

#Unit 11. Evolution and Behavior

Modern humans and Neanderthals show an average cranial capacity of around 1400–1500 cc. 

TLS Online TPP Program

#Id: 8996

#Unit 6. System Physiology – Plant

Regeneration of the CO2 acceptor ribulose 1,5-bisphosphate. 

The cycle is completed by regeneration of ribulose 1,5-bisphosphate through a series of ten enzyme-catalyzed reactions, one requiring ATP.

TLS Online TPP Program

#Id: 2243

#Unit 11. Evolution and Behavior

The loci that encode hemoglobins are members of a gene family, which is a set of loci that arose by duplication.

TLS Online TPP Program

#Id: 3032

#Unit 3. Fundamental Processes

DNA polymerase III holoenzyme assembles in stages, generating an enzyme complex that synthesizes the DNA of both new strands.\

Binding to DNA changes the conformation of the site on B that binds to the clamp loader, and as a result it now has a high affinity for the core polymerase.

First the clamp loader uses hydrolysis ofATPtobindbeta subunits to a template primercomplex.

Binding to DNA changes the conformation of the site on B that binds to the clamp loader, and as a result it now has a high affinity for the core polymerase.

tau. dimer binds to the core polymerase, and provides a dimerization function thatbinds a second core polymerase (associated with another B2 

TLS Online TPP Program

#Id: 7567

#Unit 6. System Physiology – Plant

PSARK::IPT transgenic cotton plants produced more root and shoot biomass, dropped fewer flowers, maintained higher chlorophyll content, and higher photosynthetic rates under reduced irrigation conditions in comparison to wild-type and segregated non-transgenic lines. 

Furthermore, PSARK::IPT-transgenic cotton plants grown in growth chamber condition also displayed greater drought tolerance.  These results indicate that water-deficit induced expression of an isopentenyltransferase gene in cotton could significantly improve drought tolerance.