CBSE Class 12: Reproduction in Organisms - Post Fertilization Events

Jun 19, 2015, 11:22 IST

In this video we will learn about the post fertilization events like formation of zygote and embryogenesis.

In this video we will learn about the post fertilization events like formation of zygote and embryogenesis.

• Two haploid gametes are fused to form a diploid zygote

• Zygote will form outside the body in case of external fertilization and inside the body incase of internal fertilization

• Embryogenesis event starts once diploid zygote will be formed

• In embryogenesis, zygote grows, multiplies by mitotic division and differentiates in three layers that are: mesoderm, endoderm and ectoderm

• These three layers give rise to different types of organs.

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