In resting cells,

NF-κB binds directly to an inhibitor called I-κBα

TLS Online TPP Program

#Id: 6356

#Unit 8. Inheritance Biology

Crosses for stem and leaf color in four-o’clocks illustrate cytoplasmic 

TLS Online TPP Program

#Id: 777

#Unit 3. Fundamental Processes

FRET allows the detection of position of sigma relative to a site on the DNA to be measured with using separation techniques that might displace sigma from the core enzyme

 

TLS Online TPP Program

#Id: 6008

#Unit 3. Fundamental Processes

At the end of the cell cycle, ORC is bound to A–B1 elements of the origin. There is a change during G1 that results from the binding of Cdc6 and Cdt1 proteins to the ORC. 

In yeast, Cdc6 is a highly unstable protein, with a half-life of 5 minutes. It is synthesized during G1 and typically binds to ORC between the exit from mitosis and late G1. Its rapid degradation means that no protein is available later in the cycle.

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#Id: 8332

#Unit 2. Cellular Organization

Latrunculin, 

a toxin secreted by sponges, binds and sequesters G-actin

TLS Online TPP Program

#Id: 3534

#Unit 2. Cellular Organization

Animal cells have small mitochondrial genomes 16.6 kb in mammals. There are several hundred mitochondria per cell and each mitochondrion has multiple copies of the DNA.