The sedimentation rate of a given particle will be zero when the density of the

particle and the surrounding medium are equal.

TLS Online TPP Program

#Id: 120

#Unit 5. Developmental Biology

Reciprocal induction occurs when the two interacting tissues are both inducers and are competent to respond to each other’s signals.

TLS Online TPP Program

#Id: 2913

#Unit 3. Fundamental Processes

Gyrase, a type II topoisomerase, provides a swivel that allows one DNA strand to rotate around the other.

TLS Online TPP Program

#Id: 2908

#Unit 3. Fundamental Processes

Each DnaB-DnaC complex consists of six DnaC monomers bound to a hexamer of DnaB

TLS Online TPP Program

#Id: 2905

#Unit 3. Fundamental Processes

DnaA then acts at three A-T-rich 13 -bp tandem repeats located on the left side of oriC

TLS Online TPP Program

#Id: 7758

#Unit 1. Molecules and their Interaction Relevant to Biology

A molecule is the smallest part of a substance that has the physical and chemical properties of that substance. In some respects, a molecule is similar to an atom. A molecule, however, is composed of more than one atom.