Second cleavage of Notch occurs within membrane-spanning region & catalyzed by γ-secretase

TLS Online TPP Program

#Id: 922

#Unit 13. Methods in Biology

CFSE labeling amount of fluorescence emitted is cut in half each time the cell divides.

TLS Online TPP Program

#Id: 9887

#Unit 4. Cell Communication and Cell Signaling

Eat me” signals

Dying cells facilitate their own phagocytosis by expressing on their surfaces such as phosphatidyl serine and lysophosphatidyl choline, proteins (annexin I), and altered carbohydrates. 

TLS Online TPP Program

#Id: 8313

#Unit 2. Cellular Organization

3 isoforms of actin-

α - expressed only in muscle cells

β and γ - found together in almost all non-muscle cells

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#Id: 7174

#Unit 5. Developmental Biology

High β-catenin + Nodal related high + Veg T, Vg1 = Organizer 

TLS Online TPP Program

#Id: 4777

#Unit 5. Developmental Biology

Wnt signaling cascade is to downregulate the expression of the pop-1 gene in the EMS daughter destined to become the E cell.