Sodium bromide and sodium iodide are employed for the fractionation of lipoproteins
and the banding of DNA or RNA molecules, respectively.

TLS Online TPP Program

#Id: 3508

#Unit 2. Cellular Organization

Genes that share a common ancestry have similar organizations with conservation of the positions of the introns.

TLS Online TPP Program

#Id: 7561

#Unit 6. System Physiology – Plant

Biological effects of cytokinins

Removes       Promotes accumulation of G1 cyclins (CycD)

inhibitory

phosphate 

TLS Online TPP Program

#Id: 7019

#Unit 5. Developmental Biology

Once stem cells become positioned farther from the niche, signaling factors cannot reach them, and differentiation commences.

TLS Online TPP Program

#Id: 3524

#Unit 2. Cellular Organization

The coexistence of multiple alleles at a locus in a population is called genetic polymorphism. A locus is usually defined as polymorphic if two or more alleles are present at a frequency of more than 1% in the population.

TLS Online TPP Program

#Id: 9611

#Unit 4. Cell Communication and Cell Signaling

Binding of ligand to predimerized but inactive RTK alters the conformation of the dimer in such a way that the receptor’s kinase becomes activated.