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ExamsNEETBiology

The correct sequence in the process of development of human embryo is:

  1. Fertilisation—zygote—cleavage—morula—blastula—gastrula
  2. Fertilisation—cleavage—morula—zygote—blastula—gastrula
  3. Fertilisation—zygote—blastula—morula—cleavage—gastrula
  4. Cleavage—zygote—fertilisation—morula—blastula—gastrula

Correct answer: Fertilisation—zygote—cleavage—morula—blastula—gastrula

Solution

Fertilisation produces the zygote, which then undergoes cleavage to form many smaller cells. These organize into morula, then blastula, and finally gastrula as germ layers begin to form.

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