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Standard XII
Zoology
Question

Which is formed in gastrulation?
  1. Archenteron
  2. Heart
  3. Brain
  4. None of the above

A
Brain
B
Archenteron
C
Heart
D
None of the above
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Solution
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Gastrulation is the process of embryonic development during which cell movements establish the three primary germinal layers namely ectoderm, mesoderm and endoderm. Gastrula is the embryonic stage of development in which the germinal layers have been formed. Archentron is the cavity which occurs inside the gastrula and is the future alimentary canal. It opens to the outside through blastopore which later on closes.
So, the correct answer is 'Archentron'.

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