Many prokaryotic ORFs contain a short sequence upstream (on the 5’side) of the start codon called the ribosome binding site (RBS). This element is also referred to as a Shine –Dalgarno sequence.

TLS Online TPP Program

#Id: 3012

#Unit 3. Fundamental Processes

A helicase usually initiates unwinding at a single-stranded region adjacent to a duplex. Note that it cannot unwind a segment of duplex DNA; it can only continue to unwind a sequence that has been started.

TLS Online TPP Program

#Id: 9080

#Unit 4. Cell Communication and Cell Signaling

Binding of acetylcholine triggers the opening of an associated K+ channel  in the plasma membrane via the Gβγ subunit of a Gi protein

TLS Online TPP Program

#Id: 4625

#Unit 13. Methods in Biology

The interaction between antibody and a particulate antigen results in visible clumping called agglutination. Antibodies that produce such reactions are called agglutinins.

TLS Online TPP Program

#Id: 7159

#Unit 5. Developmental Biology

Amphibian Gastrulation

TLS Online TPP Program

#Id: 1643

#Unit 4. Cell Communication and Cell Signaling

Class II, presentation is inhibited by treatment of the cells with an agent that blocks endocytic processing within the cell (chloroquine).