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  1. During embryonic development, the establishment of polarity along anterior/ posterior, dorsal/ventral or medial/lateral axis is called
    1. pattern formation
    2. organizer phenomena
    3. axis formation
    4. anamorphosis
Correct Option: B

An organizer is a signal aligning center that directs the development of embryo or part of embryo, e.g. in amphibians, it is dorsal tip of blastophore.



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