Cytokinin has been linked to the activation of a Cdc25- like phosphatase, whose role is to remove an inhibitory phosphate group from the Cdc2 kinase.  Cytokinins elevate the expression of the CYCD3 gene, which encodes a D-type cyclin

TLS Online TPP Program

#Id: 6158

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 6454

#Unit 3. Fundamental Processes

The α-amanitin binding site is beneath a “bridge helix” extending across the cleft between the two largest pol II subunits, Rpb1 and Rpb2

a DNA template, whereas in eukaryotes, transcription takes place on a chromatin template.

TLS Online TPP Program

#Id: 7917

#Unit 2. Cellular Organization

Brown Adipose Tissue

is brown because of the presence of large numbers of mitochondria (high concentrations of cytochromes), with heme groups that are strong absorbers of visible 

TLS Online TPP Program

#Id: 7818

#Unit 10. Ecological Principles

In many endotherms, shivering occurs in cold conditions whereby the body undergoes rapid muscle contractions without any locomotion.

When the body temperature falls, brown fat cells increase their metabolic rate, and hence heat production.

TLS Online TPP Program

#Id: 6560

#Unit 7. System Physiology – Animal

In both A and L cells, residual glicentin-related polypeptide (GRPP) is left