During gastrulation dorsal lip of blastopore (1 external sign of gastrulation) appears

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2.Human Reproduction

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During gastrulation the dorsal lip of blastopore (1 external sign of gastrulation) appears

A

Anteriorly in the pigmented area of egg

B

Posteriorly in the yolky cytoplasmic area

C

In the centre of the egg

D

Behind the grey crescent area

Solution

(d)During gastrulation the dorsal lip of blastopore appears behind the grey crescent area.

Standard 12

Biology

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