Integrins are the principal receptors used by animal cells to bind to the extracellular matrix. 

 

TLS Online TPP Program

#Id: 4032

#Unit 7. System Physiology – Animal

Stimulation of the sympathetic cardiac nerves speeds the depolarization in SA node.

TLS Online TPP Program

#Id: 526

#Unit 2. Cellular Organization

The length of Introns is variable while exons are almost constant in length.

TLS Online TPP Program

#Id: 3997

#Unit 2. Cellular Organization

In a natural closed DNA that is negatively supercoiled, the intercalation of ethidium bromide first removes the negative supercoils and then introduces positive supercoils.

TLS Online TPP Program

#Id: 9921

#Unit 4. Cell Communication and Cell Signaling

Cell-Mediated Immunity against Virus

Both CD8+ TC cells and CD4+ TH1 cells are required components of the cell-mediated antiviral defense.

Activated TH1 cells produce IL-2, IFN-ϒ, and tumor necrosis factor-α.

TLS Online TPP Program

#Id: 2592

#Unit 13. Methods in Biology

The logic for hotstart PCR is as follows, most DNA samples used as template will have some single-stranded DNA.