Telomeric clustering on nuclear envelope called as the “bouquet” stage of meiosis, and represents a once-in-a-lifecycle configuration.

TLS Online TPP Program

#Id: 4740

#Unit 5. Developmental Biology

The founder cell (AB) divides equatorially, while the P1 cell divides meridionally (transversely) to produce another founder cell (EMS) and a posterior stem cell (P2).

TLS Online TPP Program

#Id: 2321

#Unit 3. Fundamental Processes

Splice sites are directional in nature. 5’ splice site -the left, or donor, site and the 3’ splice site - right, or acceptor, site.

TLS Online TPP Program

#Id: 5704

#Unit 7. System Physiology – Animal

ACTH (corticotropin) 

controls the secretion of cortisol by the activation of adenylyl cyclase via Galpha s.

TLS Online TPP Program

#Id: 5368

#Unit 10. Ecological Principles

The simplest method to measure population density is to visually count the number of organisms in a population in a given habitat.

TLS Online TPP Program

#Id: 5418

#Unit 7. System Physiology – Animal

Ependymal cells are ciliated-epithelial glial cells that develop from radial glia along the surface of the ventricles of the brain and the spinal canal & play a critical role in cerebrospinal fluid homeostasis, brain metabolism, and the clearance of waste from the brain.