During gastrulation,the dorsal lip of the blastopore (the first external sign of gastrulation) appears:

  • A
    Anteriorly in the pigmented area of the egg
  • B
    Posteriorly in the yolky cytoplasmic area
  • C
    In the centre of the egg
  • D
    Behind the grey crescent area

Explore More

Similar Questions

The jelly layer of a frog's egg is:

When a sperm enters an egg of a frog,what happens?

The development of a frog is:

Grey crescent is present in

Based on the distribution of yolk, the egg of a frog is:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo