Final answer:
Performing a somatic cell nuclear transplant of a human diploid nucleus into an enucleated rabbit egg would result in a genetically identical zygote to the donor. This is achieved by transferring the diploid nucleus into the enucleated egg and stimulating its development through somatic cell nuclear transfer.
Step-by-step explanation:
If a somatic cell nuclear transplant of a human diploid nucleus into an enucleated rabbit egg were performed, it would result in a zygote that is genetically identical to the donor of the human diploid nucleus. This is because the diploid nucleus from the human cell contains the complete set of genetic information needed to develop into a new individual. By transferring it into the enucleated egg cell and stimulating its development, scientists can create a genetically identical organism through somatic cell nuclear transfer.