Once wingless and engrailed expression patterns are established in adjacent cells, this pattern must be maintained to retain the parasegmental periodicity of the body plan.

TLS Online TPP Program

#Id: 2169

#Unit 11. Evolution and Behavior

Average fitness

In a species, only 1 of every 1000 seeds survives to reproductive age, and that those that survive produce an average of 3000 seeds.

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#Id: 6101

#Unit 3. Fundamental Processes

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#Id: 8533

#Unit 2. Cellular Organization

Rescue 

The change from shrinkage to growth

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#Id: 9912

#Unit 4. Cell Communication and Cell Signaling

Cyclooxygenase-2 (COX-2)

Enzyme responsible for the formation from arachidonic acid of prostaglandins and other pro-inflammatory mediators.

TLS Online TPP Program

#Id: 10471

#Unit 4. Cell Communication and Cell Signaling

A mutation, valine to glutamine in the TM region of the HER2 receptor causes dimerization of the receptor, even in the absence of the ligand, transforming it into the oncoprotein NEU, a constitutively active protein tyrosine kinase.