A point mutation substitutes any other amino acid

for the glycine12 in the Ras, the normal protein is converted into a constitutively active oncoprotein

TLS Online TPP Program

#Id: 9875

#Unit 4. Cell Communication and Cell Signaling

The main physical barriers—the body’s first line of defense—are the epithelial layers of the skin and of the mucosal and glandular tissue surfaces connected to the body’s openings

TLS Online TPP Program

#Id: 2208

#Unit 11. Evolution and Behavior

Chevalier de Lamarck- Inheritance of acquired characteristics

TLS Online TPP Program

#Id: 10074

#Unit 4. Cell Communication and Cell Signaling

A cadherin-family member CDHR3, highly expressed in epithelial cells in the human airway, as a receptor for RV-C (virulent class C rhinoviruses).

TLS Online TPP Program

#Id: 9821

#Unit 6. System Physiology – Plant

A brief pulse of red light will induce a response, provided that the light is sufficiently bright, and conversely, very dim light will work if the irradiation time is long enough. 

This reciprocal relationship between fluence rate and time is known as the law of reciprocity

TLS Online TPP Program

#Id: 5495

#Unit 10. Ecological Principles

Under favorable circumstances, the same per unit biomass of annuals produces more seeds than the same per unit biomass of trees.