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Human Reproduction

Question
CBSEENBI12047396
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The correct sequence of embryonic development is

  • Blastula - Morula - Zygote - Gastrula - Embryo

  • Zygote - Blastula - Morula - Gastrula - Embryo

  • Zygote - Morula - Blastula - Gastrula - Embryo

  • Gastrula - Morula - Zygote - Blastula - Embryo

Solution

C.

Zygote - Morula - Blastula - Gastrula - Embryo

The mitotic division starts as the zygote moves towards the isthmus of the oviduct towards the uterus called cleavage. The cleavage converts the egg into a compact mass of blastomeres called morula, which ultimately transforms into blastula. The blastula precedes the formation of the gastrula in which the germ layers of the embryo forms. Gastrulation is followed by organogenesis, when individual organs develop within the newly formed germ layers. Each layer gives rise to specific tissues and organs in the developing embryo. Thus, the correct sequence is

Zygote → Morula → Blastula → Gastrula → Embryo

Some More Questions From Human Reproduction Chapter

Sertoli cells provide :

The middle piece of human sperm contains :

Seminiferous tubules open into vasa efferentia through :

Polar bodies are produced during the process :

In 28 days woman's menstrual cycle, ovulation occurs on :

Scrotum communicates with abdominal cavity through :

How many spermatozoa or sperms are present in human ejaculate ?

Acrosome is a part of:

Humans are :

Menstrual cycle occurs in :

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