These epithelial barriers include the skin and the tissue surfaces connected to the body’s openings.

Skin and other epithelia provide a kind of living “plastic wrap” that encases and protects the inner domains of the body from infection.

TLS Online TPP Program

#Id: 8351

#XL - Q Biochemistry

WASp activation requires two signals (This type of two-signal input, called coincidence detection):

1. regulatory phospholipid PIP2

2. small GTP-binding protein Cdc42

TLS Online TPP Program

#Id: 7034

#XL - T Zoology

TLS Online TPP Program

#Id: 9203

#XL - T Zoology

Balance natural selection

Balancing selection is a type of natural selection that maintains genetic diversity in a population.

In balancing selection, two or more alleles are kept in balance, and therefore are  maintained in a population over the course of many generations.

TLS Online TPP Program

#Id: 9506

#XL - R Botany

P. syringae pv. Syringae (Pss) secrete syringolin A (SylA), a peptide derivative synthesized by a mixed nonribosomal peptide synthetase/polyketide synthetase encoded by a gene cluster. 

TLS Online TPP Program

#Id: 8119

#XL - Q Biochemistry

The triterpenes are C30 terpenes and include squalene and lanosterol, two of the precursors of cholesterol