You want to create a much bigger caterpillar than a species normally makes.This caterpillar normally has only five instars before pupating; you decide to make it go through eight instars, thus causing it to grow bigger with each molt.What factor would you expose the caterpillar to in order to make it continue to molt into instars?

MCQs on the field of developmental biology from its origins to the present day, from seminal historical experiments to modern techniques and the mechanisms of development. Covers a variety of organisms from their start at fertilization through the stages of their development and on to entire organismal and post-embryonic development, as well as the molecular and genetic regulations involved in these processes.