Nomograph for the determination of the relative centrifugal fi eld for a given rotor
speed and radius. The three columns represent the radial distance (in mm), the relative
centrifugal fi eld and the rotor speed rpm (in min-1).

TLS Online TPP Program

#Id: 9811

#Unit 6. System Physiology – Plant

A toggle model is for phytochrome interconversion

The structure of the b-hairpin region of Pr is changed to an a helix during the conversion of Pr to Pfr, which initiates other conformational changes in the protein.

TLS Online TPP Program

#Id: 3848

#Unit 5. Developmental Biology

For stalk and spore maturation, cAMP is produced by adenylate cyclase R (ACR)

TLS Online TPP Program

#Id: 3781

#Unit 1. Molecules and their Interaction Relevant to Biology

The multi-atom combinations are called molecules. A molecule is the smallest part of a substance that has the physical and chemical properties of that substance.

TLS Online TPP Program

#Id: 7932

#Unit 2. Cellular Organization

Signal sequence

ER targeting sequence, located at the N-terminus of the protein

TLS Online TPP Program

#Id: 3968

#Unit 2. Cellular Organization

Each domain consists of -40 kilobases of DNA, or may be smaller, 10 kb each. About -400 domains in the E. coli genome. The ends of the domains appear to be randomly distributed instead of located at predetermined sites on the chromosome.