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Question

The yolk plug of gastrula represents in the later stage its

A
Anterior end
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B
Posterior end
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C
Dorsal side
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D
Ventral side
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Solution

The correct option is B Posterior end
Yolk plug is created during the formation of dorsal lip of the blastopore. It constitutes the remaining patch of endodermal cells, which is exposed on to the vegetal surface that eventually will form the posterior end.

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