Which one of the following events is likely to take place, if the nuclei from an 8- celled stage of an embryo are transplanted into enucleated eggs?
Correct answer: D. Formation of the viable embryo in the recipient eggs
- A. Recipient egg dies
- B. Donor nuclei die in the new environment
- C. Cleavage occurs but is arrested after some time
- D. Formation of the viable embryo in the recipient eggs
Explanation
In the ideal scenario, the transplanted nuclei successfully integrate with the recipient egg's cytoplasm, leading to the formation of a viable embryo capable of further development.
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About Embryonic Development
Embryonic development begins after fertilization with cleavage and formation of the morula and blastula, followed by gastrulation and the establishment of germ layers. It includes organ formation, tissue differentiation and early growth, rather than the later increase in size associated with postnatal development.
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