perforins punch holes in the endocytic vesicle membrane, allowing granzymes to enter the cytoplasm

TLS Online TPP Program

#Id: 10477

#Unit 4. Cell Communication and Cell Signaling

In certain tumors of antibody-producing B lymphocytes, the cyclin D1 gene is translocated & its transcription is

under the control of an antibody-gene enhancer, causing elevated cyclin D1 production.

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#Id: 779

#Unit 3. Fundamental Processes

Transcription termination sites are often best characterized in vitro. 

TLS Online TPP Program

#Id: 2491

#Unit 13. Methods in Biology

SDS–PAGE are firstly boiled for 5 min in sample buffer containing - mercaptoethanol or dithiothreitol ( DTT) and SDS. Mercaptoethanol or DTT reduce any disulfide bridges

TLS Online TPP Program

#Id: 10175

#Unit 6. System Physiology – Plant

In the absence of gibberellin, 

the DELLA proteins positively regulate GID1, GA20ox, and GA3ox, and negatively regulate GA2ox. 

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#Id: 2014

#Unit 8. Inheritance Biology