Thick-filament regulation Myosin-dependent mechanism regulate contraction in smooth muscle and non-muscle cells.

TLS Online TPP Program

#Id: 1598

#Unit 5. Developmental Biology

Cell migration mediated by the activation of the Wnt planar cell polarity pathway in the epiblast next to Koller’s sickle, at the posterior edge of the embryo.

TLS Online TPP Program

#Id: 1599

#Unit 5. Developmental Biology

The Wnt PCP pathway activated by fibroblast growth factors (FGFs) produced by the hypoblast.

TLS Online TPP Program

#Id: 1600

#Unit 5. Developmental Biology

Convergent extension is responsible for the progression of the streak.

TLS Online TPP Program

#Id: 1601

#Unit 5. Developmental Biology

If Wnt PCP pathway is blocked, the mesoderm and endoderm form peripherally instead of centrally.

 

TLS Online TPP Program

#Id: 1602

#Unit 5. Developmental Biology

As cells enter the primitive streak, they undergo an epithelial-to-mesenchymal transformation.

TLS Online TPP Program

#Id: 1603

#Unit 5. Developmental Biology

The elongation of the primitive streak coextensive with the anterior migration of secondary hypoblast cells, and hypoblast directs the movement of the primitive streak.