Question

If the nuclei from an 8 celled stage of an embryo are transplanted into enucleated eggs, which of the following events is likely to occur?

• A. Formation of viable embryo in the recipient eggs.
• B. Donor nuclei die in the new environment.
• C. Cleavage occurs but is arrested after some time.
• D. Recipient egg dies.

Answer 1

The correct option is A Formation of viable embryo in the recipient eggs.

The nucleus can be transplanted from an early stage embryo to the unfertilized egg, which has been enucleated. This process is called as nuclear transplantation. This induces the development of the host egg according to the instructions of the newly inserted nucleus, which results in the formation of an organism with the same genetic material as the donor cell.

Thus, the correct answer is option A.