Which statement is true of Spemann’s organizer?a. It is unique to amphibian embryos.b. It arises early in cleavage-stage embryos.c. It secretes morphogens, including the protein called noggin.d. It is found in the dorsal lip region of early gastrula-stageembryos.e. Both c and d are true of Spemann’s organizer.

Biology (MindTap Course List)
11th Edition
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
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Chapter51: Animal Development
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Problem 7TYU: Which of the following are mismatched? (a) endoderm; lining of the digestive tube (b) ectoderm;...
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Which statement is true of Spemann’s organizer?
a. It is unique to amphibian embryos.
b. It arises early in cleavage-stage embryos.
c. It secretes morphogens, including the protein called noggin.
d. It is found in the dorsal lip region of early gastrula-stage
embryos.
e. Both c and d are true of Spemann’s organizer.

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