#Question id: 7161
#Unit 5. Developmental Biology
What is especially exciting about research into regeneration in zebrafish?
#Question id: 7162
#Unit 5. Developmental Biology
Is regeneration in Hydra similar to regeneration in vertebrates, or is it fundamentally different in some way?
#Question id: 7163
#Unit 5. Developmental Biology
What statement is correct when comparing morphallaxis and epimorphosis?
#Question id: 7164
#Unit 5. Developmental Biology
If an amphibian zygote is manipulated so that the first cleavage plane fails to divide the gray crescent, then ________.
#Question id: 7165
#Unit 5. Developmental Biology
Embryonic induction, the influence of one group of cells on another group of cells, plays a critical role in embryonic development. In 1924, Hans Spemann and Hilde Mangold transplanted a piece of tissue that influences the formation of the notochord and neural tube, from the dorsal lip of an amphibian embryo to the ventral side of another amphibian embryo. If embryonic induction occurred, which of the following observations justifies the claim of embryonic induction?
#Question id: 7166
#Unit 5. Developmental Biology
Just prior to the onset of gastrulation in an embryo, the "organizer" cells are specified. If you were to experimentally block the specification of these cells, what would you expect the result to be in the developing embryo?