A new horror movie, inspired by insect metamorphosis, has the following plot.A few humans are abducted by aliens; they are then returned to earth with no memory of their time in space, but medical tests reveal strange clusters of foreign cells throughout their body.The cell clusters do not seem to do anything, though.After a period of time, a pulse of light is sent to earth from outer space.The first pulse causes the abductees to wrap themselves in blankets and secrete a covering that seals the blankets over them. While they are within their blankets, their own bodies disintegrate and the clusters of cells within them form new structures.Another pulse of light is sent from space, and the former abductees break out of their wrappings; they look nothing like the humans they were, and—of course, this being a horror movie—they want to kill everybody.In this movie, the clusters of cells most closely resemble what in insect metamorphosis?

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.