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TLS Online TPP Program
#Question id: 31379
#Unit 5. Developmental Biology
The cadherin catenin complex is extremely important during compaction from a morula to the blastula. Transition of early embryonic cells into a blastula differed depending on the presence or absence of calcium ions. In addition, an investigator blocked the expression of β-catenin using vivo morpholinos to detect its effect simultaneously on compaction. Which one of the following conditions will lead to the most successful transition of the morula into the blastula?
TLS Online TPP Program
#Question id: 31169
#Unit 7. System Physiology – Animal
The basis for the relative refractory period is the:
TLS Online TPP Program
#Question id: 15450
#Unit 4. Cell Communication and Cell Signaling
T-cell dependent response requires a signal is provided by an activated T cell, which binds to the B cell through,
a) lipopolysaccharide moiety
b) its antigen receptor
c) A separate interaction between CD40L on the B cell and CD40 (CD154) on the activated TH cell
d) A separate interaction between CD40 on the B cell and CD40L (CD154) on the activated TH cell
TLS Online TPP Program
#Question id: 27120
#Unit 4. Cell Communication and Cell Signaling
A case of sarcomas grow as individual cells in blood
TLS Online TPP Program
#Question id: 28345
#Unit 5. Developmental Biology
Gurken binds to Torpedo, the terminal follicle cells differentiate into posterior follicle cells and activates kinases in the egg, these kinase are___