Yes, even a scientist is entitled to the belief that human life (and the human soul) begins at conception, and that cloning is a morally reprehensible intervention in that Divine scheme. The belief in the human soul as a Divine creation, born only of the union of a man and a woman, makes human cloning an evil not to be considered under any circumstances.
Vastly more ethical and spiritual consideration and debate must be given to any possibility of human cloning before such procedures can even be considered.