Nucleation phase 

Two G-actin molecules bind relatively weakly to each other, but addition of a third actin monomer to form a trimer makes the entire group more stable, acts as a nucleus for polymerization.

TLS Online TPP Program

#Id: 3772

#Unit 1. Molecules and their Interaction Relevant to Biology

Matter is anything that takes up space and has mass.

TLS Online TPP Program

#Id: 5811

#Unit 7. System Physiology – Animal

TLS Online TPP Program

#Id: 7683

#Unit 1. Molecules and their Interaction Relevant to Biology

The Ramachandran Principle is that alpha helices, beta strands, and

turns are the most likely conformations for a polypeptide chain to 

adopt, because most other conformations are impossible due to

steric collisions between atoms. 

TLS Online TPP Program

#Id: 7337

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 2098

#Unit 8. Inheritance Biology

Chromosome duplications are one way in which new genes evolve.