Vegetative cells begin sporulation when a key nutrient- carbon or nitrogen source becomes scarce.

TLS Online TPP Program

#Id: 574

#Unit 2. Cellular Organization

OC are constitutive because repressor protein is unable to bind; this allows RNA polymerase to have unrestrained access to the promoter. 

TLS Online TPP Program

#Id: 4671

#Unit 13. Methods in Biology

Antibody and soluble antigen interacting in aqueous solution form a lattice that eventually develops into a visible precipitate. Antibodies that aggregate soluble antigens are called precipitins.

TLS Online TPP Program

#Id: 2376

#Unit 5. Developmental Biology

Regulation of the balance between Wnt and Notum signals underlie not only head-tail specification but also regulation of organ size.

 

TLS Online TPP Program

#Id: 6615

#Unit 7. System Physiology – Animal

The first 14 days of the menstrual cycle involve follicular development (follicular phase).

TLS Online TPP Program

#Id: 8135

#Unit 2. Cellular Organization

The Golgi consists of four functionally distinct regions:

a. Cis compartments

b. Medial compartments

c. Trans compartments

d. Trans-Golgi network