A cadherin-family member CDHR3, highly expressed in epithelial cells in the human airway, as a receptor for RV-C (virulent class C rhinoviruses).

TLS Online TPP Program

#Id: 1894

#Unit 4. Cell Communication and Cell Signaling

The decision of double-positive thymocytes to become helper CD4 or cytotoxic CD8 T cells.

TLS Online TPP Program

#Id: 489

#Unit 2. Cellular Organization

In interphase nuclei, this underlying proteinaceous structure changes its organization to occupy the entire nucleus; during interphase the structure is referred to as the matrix rather than the scaffold.

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#Id: 2385

#Unit 3. Fundamental Processes

 Five ways to splice an RNA

TLS Online TPP Program

#Id: 2748

#Unit 13. Methods in Biology

The RAPD technique is based on PCR, which uses a DNA polymerase that is resistant to the high temperature needed for DNA denaturation; this permits the enzyme to be used repeatedly during the amplification process. 

TLS Online TPP Program

#Id: 7806

#Unit 10. Ecological Principles

TEMPORAL ENVIRONMENTAL VARIATION describes how environmental conditions change over time.