Before puberty, growth hormone excess causes gigantism

TLS Online TPP Program

#Id: 7508

#Unit 4. Cell Communication and Cell Signaling

The ZnA region of the protein assists in the initial RAG1 binding to active chromatin via its ability to interact with histone H3.

TLS Online TPP Program

#Id: 10324

#Unit 4. Cell Communication and Cell Signaling

PD-1 has a structure similar to CTLA-4 and when activated negatively regulates T-cell function by inducing apoptosis of activated T cells. 

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#Id: 7435

#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 own

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#Id: 868

#Unit 13. Methods in Biology

PCR amplification is mathematically counted as 2n So 10 cycle leads to 1024 times amplification

TLS Online TPP Program

#Id: 5210

#Unit 7. System Physiology – Animal

In circulating blood, thrombin is a procoagulant that activates factors V and VIII, but when it binds to thrombomodulin, it becomes an anticoagulant in that the thrombomodulin–thrombin complex activates protein C.