Cambrian- Most marine invertebrates

TLS Online TPP Program

#Id: 8901

#Unit 2. Cellular Organization

Condensin association with chromosomes is facilitated by mitotic CDKs and Aurora B, which phosphorylate histone H2A, allowing condensins to bind chromatin.

TLS Online TPP Program

#Id: 4007

#Unit 2. Cellular Organization

Matrix-associated regions (MARs) may be identified by characterizing the DNA retained by the matrix isolated in vivo (left) or by identifying the fragments that can bind to the matrix from which all DNA has been removed (right).

TLS Online TPP Program

#Id: 2178

#Unit 11. Evolution and Behavior

Mutation and natural selection act as opposing forces on detrimental alleles.

TLS Online TPP Program

#Id: 1557

#Unit 4. Cell Communication and Cell Signaling

Wnt = wingless + integrated

TLS Online TPP Program

#Id: 6538

#Unit 7. System Physiology – Animal

The insulin receptor, a receptor tyrosine kinase, activates several signal transduction pathways, including the one leading to the activation of protein kinase B