Replication requires a helicase to separate the strands of DNA using energy provided by hydrolysis of ATP.

TLS Online TPP Program

#Id: 1717

#Unit 4. Cell Communication and Cell Signaling

IgE binds two different receptors, the high-affinity FcεRI, which is responsible for most of the symptoms we associate with allergy, and the lower-affinity FcεRII, which regulates the production of IgE by B cells, as well as its transport across cells.

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#Id: 2994

#Unit 3. Fundamental Processes

Nick translation has been a major technique for introducing radioactively labeled nucleotides into DNA in vitro.

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#Id: 4883

#Unit 13. Methods in Biology

If p > 0.01 and p ≤ 0.05, then there must be a strong assumption about the null hypothesis.

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#Id: 4669

#Unit 13. Methods in Biology

The bacterium Streptococcus pyogenes, for example, expresses cell-wall proteins called M antigens. Antibodies produced to streptococcal M antigens have been shown to cross-react with several myocardial and skeletal muscle proteins and have been implicated in heart and kidney damage following streptococcal infections. 

TLS Online TPP Program

#Id: 5278

#Unit 7. System Physiology – Animal

Potassium channels remain open for another few tenths of a second, with resultant excess negativity inside the fiber; this process is called hyperpolarization.