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Gastrula has a pore which is known as
Option: 1
Blastopore
Option: 2
Gonophore
Option: 3
Zoospore
Option: 4
Oospore
Answers (1)
Gastrulation results in setting apart of the three primary germinal layers, i.e., the ectoderm, mesoderm and endoderm from a single layer of cells called the blastoderm. At the onset of gastrulation, the blastoderm at the vegetal pole becomes flat. It gradually bends inwards till the embryo assumes the appearance of a double-walled cup. The cavity so formed is called archenteron and its opening is called blastopore.
Hence, the correct answer is option a.
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