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bp0005rdr11 | Reproductive Technology | REDR2002

Cloning in livestock agriculture

Wells DN

A tremendous amount is required of the oocyte cytoplasm to reprogramme a differentiated donor nucleus after somatic cell nuclear transfer so that it re-acquires a state of totipotency and can form a cloned individual. These reprogramming events must occur in a relatively short period after embryo reconstruction, quite unlike the situation during gametogenesis. It is remarkable that nuclear transfer can produce physiologically normal animals, but the process is highly prone to ...