Sexual dimorphism can evolve when selection favors the expression of a trait to be different in males and females. 

This situation is called sexually antagonistic selection, because an increase in the trait’s expression benefits one sex but harms the other.

TLS Online TPP Program

#Id: 9654

#XL - T Zoology

Feedback regulation by MAP Kinase

activated MAP kinase phosphorylates the HER1 on a threonine residue near the juxtamembrane domain. 

TLS Online TPP Program

#Id: 8880

#XL - T Zoology

Active cytoplasmic cyclin B-CDK1 translocates into the nucleus, where it phosphorylates nuclear lamins to cause nuclear envelope breakdown and, together with Plk1 and the Aurora kinases, induces chromosome condensation and formation of the mitotic spindle.

TLS Online TPP Program

#Id: 10798

#XL - R Botany

Monoterpenes ester are called pyrethroids

occur in leaves and flower of chrysanthemum species show very striking insecticidal activity

TLS Online TPP Program

#Id: 9100

#XL - T Zoology

In response to activation of acetylcholine GPCRs, PLC, and the elevation in cytosolic Ca²+, Nitric oxide is synthesized in endothelial cells.

TLS Online TPP Program

#Id: 7908

#XL - Q Biochemistry

In healthy mitochondria, PINK1 resides in the mitochondrial matrix.

In damaged or dysfunctional mitochondria, PINK1 resides on the outer mitochondrial membrane, where it recruits cytosolic Parkin.