Introns may more freely accumulate point substitutions and other changes due to no selection pressure.

TLS Online TPP Program

#Id: 523

#Unit 2. Cellular Organization

Exon Sequences Under Positive Selection Vary but Introns Are Conserved

TLS Online TPP Program

#Id: 9855

#Unit 6. System Physiology – Plant

In Mougeotia, the photoreceptors regulating chloroplast movement consist of a fusion between phytochrome and a phototropin known as neochrome, and show typical bilin binding as well as red/far-red reversibility.

TLS Online TPP Program

#Id: 10086

#Unit 4. Cell Communication and Cell Signaling

The non-I-domain α subunits recognize RGD motif.

TLS Online TPP Program

#Id: 709

#Unit 3. Fundamental Processes

A locus called dat has a large concentration of DnaA-binding sites. It binds about 80 more DnaA molecules than the origin.

TLS Online TPP Program

#Id: 4777

#Unit 5. Developmental Biology

Wnt signaling cascade is to downregulate the expression of the pop-1 gene in the EMS daughter destined to become the E cell.