Platelet-activating factor released from basophils and stimulates platelet aggregation and the release of vasoconstrictor serotonin from platelets.

TLS Online TPP Program

#Id: 8582

#Unit 2. Cellular Organization

Lamins B are post-translationally prenylated, which helps them associate with the inner nuclear envelope membrane.

TLS Online TPP Program

#Id: 2204

#Unit 10. Ecological Principles

Species richness of both plants and animals, often, but not always, increases as succession proceeds.

TLS Online TPP Program

#Id: 3276

#Unit 6. System Physiology – Plant

cytochrome C oxidoreductase, couples the transfer of electrons from ubiquinol (QH2) to cytochrome c with the vectorial transport of protons from the matrix to the intermembrane space.

TLS Online TPP Program

#Id: 393

#Unit 2. Cellular Organization

Using the clock analogy again, the DNA associated with H2A.H2B is located from 5 o’clock to 9 o’clock on either face of the nucleosome disc.

TLS Online TPP Program

#Id: 5722

#Unit 10. Ecological Principles

Ecotypes, individuals of a species that vary in external appearance and their variations are genetically fixed and irreversible The individuals of a species growing under different environmental conditions differ in external appearance, but these changes are only temporary, not permanent, and hence reversible Ecads (Ecophenes).