As anyone who has some knowledge of cloning can tell you, a clone would not be identical to the original even in terms of biology.

• 患不孕症的夫妇也可能求助于克隆。这样的夫妇当然也有其他选择（通过人工授精，或收养孩子），但这不能作为剥夺他们要求克隆权利的借口。