If a flatworm is cut into three pieces, the middle piece will regenerate a head from its anterior end and a tail from its posterior end.

TLS Online TPP Program

#Id: 3875

#Unit 5. Developmental Biology

Neighboring cells respond to cAMP in two ways:

• Initiate a movement toward the cAMP pulse for about a minute
• Release cAMP of their ownNeighboring cells respond to cAMP in two ways:

• Initiate a movement toward the cAMP pulse for about a minute
• Release cAMP of their own

TLS Online TPP Program

#Id: 3876

#Unit 5. Developmental Biology

SDF-2 activates the histidine phosphatase activity of DhkA, which induces spore encapsulation.

TLS Online TPP Program

#Id: 3877

#Unit 5. Developmental Biology

The top of the mound continues to emit cAMP pulses and is pushed upwards by the movement of cells underneath

TLS Online TPP Program

#Id: 3878

#Unit 5. Developmental Biology

Prestalk cells act as altruists which die for dispersion of kin cells.

TLS Online TPP Program

#Id: 3879

#Unit 5. Developmental Biology

The emerging column of cells topples over called ‘the slug’.

TLS Online TPP Program

#Id: 3880

#Unit 5. Developmental Biology

Slug migrates to the top layer of the soil, where it proceeds to build the fruiting structure.