Plants that increase stem extension in response to shading are said to exhibit a shade avoidance response.

As shading increases, the R:FR ratio decreases. Shade means far red light

TLS Online TPP Program

#Id: 10127

#Unit 6. System Physiology – Plant

Polar auxin transport is described in terms of the direction of its movement in relation to the base of the plant (the root–shoot junction). 

TLS Online TPP Program

#Id: 1856

#Unit 3. Fundamental Processes

Promoters that do not contain a TATA element are called TATA-less promoters. Surveys of promoter sequences suggest that 50% or more of promoters may be TATA-less.

TLS Online TPP Program

#Id: 8942

#Unit 2. Cellular Organization

In S. cerevisiae, during interphase and early mitosis, Cdc14 is sequestered and inactivated in the nucleolus. 

TLS Online TPP Program

#Id: 1224

#Unit 7. System Physiology – Animal

Two osteoblast proteins responsible for osteoclast maturation: 

1. Receptor activator for nuclear factor κ-B ligand  

2. Macrophage colony-stimulating factor

TLS Online TPP Program

#Id: 8461

#Unit 1. Molecules and their Interaction Relevant to Biology

The interactions between R groups, particularly those spaced three (or four) residues apart; The assembly is said to have a coiled coil structure because each α helix itself follows a helical path.