Dicer will act on any dsRNA, regardless of sequence, and will cleave this molecule 22 nucleotides from its end.  The PAZ domain anchors the 3’ terminus of the substrate RNA to position the active sites of the enzyme 22 nucleotides away in a ruler-like fashion

TLS Online TPP Program

#Id: 8272

#Unit 1. Molecules and their Interaction Relevant to Biology

A hydrogen bond is an intermolecular force (IMF) that forms a special type of dipole-dipole attraction when a hydrogen atom bonded to a strongly electronegative atom exists in the vicinity of another electronegative atom with a lone pair of electrons.

TLS Online TPP Program

#Id: 545

#Unit 2. Cellular Organization

In peptidoglycan the amino acids occur in an alternating pattern of D and L forms

TLS Online TPP Program

#Id: 7814

#Unit 10. Ecological Principles

Metabolic rate of Ectotherm and endotherm  with respect to variable temp

TLS Online TPP Program

#Id: 5875

#Unit 10. Ecological Principles

Relative absorption per ppm of increase 

CO2= 1

Methane= 32

Nitrous oxide= 150

Chlorofluorocarbons= >10000

TLS Online TPP Program

#Id: 1680

#Unit 4. Cell Communication and Cell Signaling

P nucleotide addition results when the DNA hairpin at the coding joint is cleaved asymmetrically.