TLS Online TPP Program

#Id: 8643

#Section 3: Genetics, Cellular and Molecular Biology

When E2Fs are bound to Rb, not only are they transcriptionally inactive, but they also function to repress transcription by recruiting chromatin-modifying enzymes that promote deacetylation and methylation of specific histone lysines.

TLS Online TPP Program

#Id: 3772

#Section 2: General Biology

Matter is anything that takes up space and has mass.

TLS Online TPP Program

#Id: 8027

#Section 2: General Biology

UV absorption

TLS Online TPP Program

#Id: 8598

#Section 3: Genetics, Cellular and Molecular Biology

Labile factors called cyclins drive the progression of cells through different stages of the cell cycle by binding to CDKs.

TLS Online TPP Program

#Id: 9203

#Section 3: Genetics, Cellular and Molecular Biology

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.