Institute of Animal Production, POB 1, ISCARE, CS-104 01 Prague 10, Czech Republic. Fulka@vuzv.cz
Micromanipulation techniques are widely used in assisted human reproduction and it is logical to assume that successes with recent animal cloning will invariably raise the question of human cloning along with its related ethical problems. However, it is often overlooked that even in animals many complications are still associated with this technique. The purpose of our article is to highlight and discuss some of these problems in the context of the eventual use of nuclear and/or cytoplasmic transfer techniques in assisted human reproduction.