Voltage-gated Na+ channels are highly concentrated in the nodes of Ranvier and the initial segment in myelinated neurons. 

TLS Online TPP Program

#Id: 6853

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 6254

#Unit 8. Inheritance Biology

Complementation test 

Determining whether two mutations associated with a specific phenotype represent two different forms of the same gene (alleles) or are variations of two different genes.

TLS Online TPP Program

#Id: 6994

#Unit 5. Developmental Biology

Cells can progress from totipotent to pluripotent to determined.   d development.

TLS Online TPP Program

#Id: 1566

#Unit 4. Cell Communication and Cell Signaling

Noncanonical pathways can be divided into two types: 

1. The “planar cell polarity” pathway

2. The “Wnt/calcium” pathway

TLS Online TPP Program

#Id: 10542

#Unit 4. Cell Communication and Cell Signaling

DNA damage or UV irradiation leads to induction of synthesis of the BH3-only Puma protein which binds to Bak and Bax as well as to Bcl-2, allowing Bak and

Bax to form oligomeric pores.