Sigma neoblasts generate a huge variety of cell types, as well as the progenitor population for zeta neoblasts.

TLS Online TPP Program

#Id: 6469

#Unit 3. Fundamental Processes

There are 27 of these repeats in the yeast Pol II CTD, 32 in the worm Caenorhabditis elegans, 45 in the fly Drosophila, and 52 in humans.  YSPTSPS repeats in CTD corresponds to the complexity of the genome.

TLS Online TPP Program

#Id: 7587

#Unit 5. Developmental Biology

Connection between sperm translocation

and capacitationbefore entering the ampulla of the oviduct, the uncapacitated sperm bindactively to the membranes of the oviduct cells in the the isthmus) & this bindingis temporary and appears to be broken when the sperm become capacitated

TLS Online TPP Program

#Id: 9173

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 3667

#Unit 3. Fundamental Processes

Valyl-tRNA synthetase can sterically exclude isoleucine from its catalytic pocket because isoleucine is larger than valine.

TLS Online TPP Program

#Id: 9191

#Unit 11. Evolution and Behavior

Types of selection