TLS Online TPP Program

#Id: 10382

#Section 2: General Biology

Expression of class II molecules by B cells is down-regulated by IFN-¥.

TLS Online TPP Program

#Id: 8654

#Section 3: Genetics, Cellular and Molecular Biology

Sic1 inhibitor is degraded following its ubiquitinylation by the SCF ubiquitin-protein ligase

TLS Online TPP Program

#Id: 8115

#Section 2: General Biology

Excreted S1P provokes many different cell and tissue effects, among them inflammation in allergic reactions, cell proliferation, angiogenesis, malignant transformation, and movement and migration of certain cells.

TLS Online TPP Program

#Id: 8953

#Section 3: Genetics, Cellular and Molecular Biology

A third way that gene duplicates arise is by retrotransposition.

Here the messenger RNA from a gene is reverse-transcribed to DNA, which is then integrated into the genome.

TLS Online TPP Program

#Id: 8854

#Section 3: Genetics, Cellular and Molecular Biology

Cohesins establish linkages between the replicated DNA molecules, which are essential for their accurate segregation later in the cell cycle. This linking mechanism is coupled to DNA replication.