Bateman’s principle

In most cases, it is the male’s secondary sexual traits that are exaggerated.

This shows that sexual selection is more common and intense on males than females

TLS Online TPP Program

#Id: 8320

#XL - Q Biochemistry

The lag phase can be reduced or abolished entirely by adding premade nuclei.

TLS Online TPP Program

#Id: 8319

#XL - Q Biochemistry

Nucleation phase 

Lag period (Time taken for nucleation) Rate-limiting Step.

TLS Online TPP Program

#Id: 8318

#XL - Q Biochemistry

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: 8317

#XL - Q Biochemistry

Actin polymerization in vitro proceeds in three steps:

1.Nucleation phase

2.Elongation phase

3.Steady-state

TLS Online TPP Program

#Id: 8316

#XL - Q Biochemistry

Persistence length,

minimum filament length at which random thermal fluctuations are likely to cause it to bend.

TLS Online TPP Program

#Id: 8315

#XL - Q Biochemistry

Actin can reversibly assemble into filaments that consist of two helices of actin subunits