Nonrandom Mating - Nonrandom mating are two type,

1. Positive assortative mating - Like individuals to mate.

2. Negative assortative mating - Unlike individuals to mate

TLS Online TPP Program

#Id: 3872

#Unit 5. Developmental Biology

GABA acts on prespore cells to induce secretion of AcbA.

TLS Online TPP Program

#Id: 3873

#Unit 5. Developmental Biology

AcbA is cleaved by the TagC protease to produce the peptide     SDF-2.

TLS Online TPP Program

#Id: 3874

#Unit 5. Developmental Biology

Chemotaxis of Dictyostelium myxamoebae is a result of spiral waves of cAMP.

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