Animals use behavior to survive in cold temperatures

Curling up into a ball to reduce the exposed surface area. 

Penguins may huddle together to conserve heat. 

Bears hibernate, spending the winter in a deep sleep.

TLS Online TPP Program

#Id: 2587

#Unit 13. Methods in Biology

In case of nested PCR, the target sequence is amplified using a pair of PCR primers, and a portion of the amplification product is reamplified using another pair of PCR primers complementary to the regions located immediately beyond the 3'-ends of the first pair of primers.

TLS Online TPP Program

#Id: 1632

#Unit 4. Cell Communication and Cell Signaling

C5b, C6 and C7 complex undergoes a conformational change that exposes hydrophobic regions on the surface of the C7 component capable of inserting into the interior of the microbial membrane.

TLS Online TPP Program

#Id: 7428

#Unit 5. Developmental Biology

Early on during aggregation, gene expression requires the activity of cAMP-dependent protein kinase.

TLS Online TPP Program

#Id: 981

#Unit 5. Developmental Biology

Brain formation requires,  inhibiting both the Wnt and  BMP pathways.

TLS Online TPP Program

#Id: 1297

#Unit 2. Cellular Organization

Four classes of ATP-powered pumps:

P-class pumps

V-class pumps

F-class pumps

ABC Superfamily