The Roman Catholic Church has called for women to be allowed to give birth to human-animal hybrids created in the laboratory. Embryos injected with animal cells, or chimeras, should be treated as human beings where they have a preponderance of human genes, the bishops say in a sumbission to a Government committee. And there should be no ban on implanting such hybrid embryos in the womb of the woman who supplied the original egg, they say in their submission on the Draft Tissue and Embryos Bill. “Such a woman is the genetic mother, or partial mother, of the embryo; should...