Facilitation may be important in early seral stages and inhibition important in later ones or vice versa.

TLS Online TPP Program

#Id: 4784

#Unit 5. Developmental Biology

In an unperturbed embryo, both ABa and ABp contact the EMS blastomere, but only ABp contacts the P2 cell.

TLS Online TPP Program

#Id: 8042

#Unit 1. Molecules and their Interaction Relevant to Biology

A system to unambiguously describe the configurations of molecules with more than one asymmetric center was devised in 1956 by Robert Cahn, Christopher Ingold, and Vladimir Prelog. In the Cahn–Ingold– Prelog or RS system

TLS Online TPP Program

#Id: 3282

#Unit 3. Fundamental Processes

In Escherichia coli,  the complex of MutS and the mismatch-containing DNA recruits MutL, a second protein component of the repair system. 

TLS Online TPP Program

#Id: 8467

#Unit 1. Molecules and their Interaction Relevant to Biology

polylysine is a random coil at pH values below about 11, where repulsion of positive charges prevents helix formation. At pH 12, where polylysine is a neutral peptide chain, it readily forms an a-helix.

TLS Online TPP Program

#Id: 8089

#Unit 1. Molecules and their Interaction Relevant to Biology

Beeswax is Triacontanoylpalmitate, is an ester of palmitic acid with the alcohol triacontanol.