A developmental biologist studying the effect of pollutants on frog abnormalities observes an interesting occurrence: if tadpoles whose tails are severed are exposed to a particular pollutant, their tail area, instead of regenerating, will grow legs!The biologist hypothesizes that the pollutant mimics the behavior of what tissue or factor?

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.