T-cell lineage

TLS Online TPP Program

#Id: 416

#Unit 2. Cellular Organization

H2AX phosphorylated at the SQEL/Y motif is sometimes referred to as “gamma-H2AX,”

TLS Online TPP Program

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#Unit 13. Methods in Biology

Examples of restriction endonuclease nomenclature.

TLS Online TPP Program

#Id: 2445

#Unit 3. Fundamental Processes

The b subunit of RNA polymerase is implicated by two types of mutation. 

First, mutations in the rpoB gene can reduce termination at a rho-dependent site. 

Second, mutations in rpoB can restore the ability to terminate transcription at rho-dependent sites in rho mutant bacteria.

TLS Online TPP Program

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#Unit 2. Cellular Organization

TLS Online TPP Program

#Id: 9203

#Unit 11. Evolution and Behavior

Balance natural selection

Balancing selection is a type of natural selection that maintains genetic diversity in a population.

In balancing selection, two or more alleles are kept in balance, and therefore are  maintained in a population over the course of many generations.