AER of the fin bud changes into an apical ectodermal fold that promotes fin ray development.

#Id: 9525

#Unit 6. System Physiology – Plant

#Id: 3668

#Unit 3. Fundamental Processes

#Id: 5422

#Unit 7. System Physiology – Animal

Bipolar neurons have two specialized processes: a dendrite that carries information to the cell and an axon that transmits information from the cell.

#Id: 7372

#Unit 5. Developmental Biology

Major genes affecting segmentation pattern 

1.Gap genes                 2. Pair rule genes(primary)           3. Segment polarity genes      

Kruppel (Kr)                    hairy(h)                                             engrailed (en)

knirps (kni)                      even skipped(eve)                           wingless (wg)

hunchback (hb)              runt(run)                                           cubitus interruptus(ci) 

giant (gt)                          Pair rule genes (secondary)           hedgehog(hh)

tailless (til)                       fushi tarazu (ftz)                              fused (fu)

huckebein (hkb)              odd paired (opa)                             armadillo (arm)

buttonhead (btd)            odd skipped (odd)                          patched (ptc)

empty spiracles (ems)    sloppy paired (slp)                          gooseberry (gsb)

orthodenticle (otd)         paired (prd)                                      pangolin (pan

#Id: 4507

#Unit 13. Methods in Biology