There are four known forces that are involved in evolution:

1)mutation,

2) genetic drift

3) gene flow or migration

4) selection.

TLS Online TPP Program

#Id: 9915

#XL - T Zoology

Intracellular infections are the most difficult for the immune system to detect and eradicate; these can be divided into membrane-bound and cytosolic, with differing key immune response mediators

TLS Online TPP Program

#Id: 9330

#XL - T Zoology

Phosphorylated rhodopsin is restored to its light-sensitive state (R) during dark adaptation by a specific rhodopsin phosphatase

TLS Online TPP Program

#Id: 7997

#XL - T Zoology

TLS Online TPP Program

#Id: 8602

#XL - R Botany

cyclin-CDK complexes preferentially phosphorylate

serine and threonine residues when they are found within the consensus sequence:

[S/T]PX[R/K]K 

TLS Online TPP Program

#Id: 8289

#XL - Q Biochemistry

Plot of ln k versus 1/T gives a straight line with a slope (m) of –Ea/R and an intercept (b) of ln A.