The zygote of C. elegans exhibits rotational holoblastic cleavage.

TLS Online TPP Program

#Id: 1614

#Unit 4. Cell Communication and Cell Signaling

Proinflammatory cytokines TNF-ᾳ, IL-1, and IL-6, produced by macrophages and dendritic cells.

TLS Online TPP Program

#Id: 9581

#Unit 11. Evolution and Behavior

Carboniferous - First reptile

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#Id: 10093

#Unit 4. Cell Communication and Cell Signaling

Integrin exist in two conformations: 

Inactive, low-affinity, “bent” conformation  

Active, high-affinity, “extended” conformation

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#Id: 9006

#Unit 6. System Physiology – Plant

The signals flow from the chloroplast to the nucleus is retrograde:

plastidial ferrochelatase I catalyzes the synthesis of heme, which in turn regulates the expression of nuclear encoded, chloroplast‐targeted proteins in greening leaves.

TLS Online TPP Program

#Id: 5734

#Unit 10. Ecological Principles

Competition theory