The termination sequences are unidirectional; that is, they function in only one orientation. The ter site is recognized by a unidirectional contrahelicase

TLS Online TPP Program

#Id: 449

#Unit 2. Cellular Organization

H32-H42 tetramer accounts for the diameter of the octamer. It forms the shape of a horseshoe.

TLS Online TPP Program

#Id: 3531

#Unit 2. Cellular Organization

Synteny provides a framework in which conservation of homologous genes and gene order is identified between genomes of different species

TLS Online TPP Program

#Id: 9503

#Unit 6. System Physiology – Plant

The ToxA gene encodes a 13‐ kDa polypeptide. ToxA stimulates host cell death in a light dependent manner by binding to Plastocynin.

TLS Online TPP Program

#Id: 2125

#Unit 8. Inheritance Biology

G-banding patterns reveal that several human chromosomes differ from those of chimpanzees by only a pericentric inversion.

TLS Online TPP Program

#Id: 2294

#Unit 3. Fundamental Processes

During initial transcription, the polymerase remains stationary on the promoter, unwinds downstream DNA, and pulls that DNA into itself