176 2014b-651 anomalies aufsatzsammlung bioethics brothersandsisters celldivision childwelfare chromosomes chromosomeshumains cytogenetica cytogenetics cytogenetik cytogénétiquehumaine cytology diagnosis diagnostic drosophilamelanogaster etc ethics fertilizationinvitro genetics human humanchromosomeabnormalities humancytogenetics humangenetik humanreproductivetechnology jurisprudence laboratorymanuals lawandlegislation legislation medicalethics methods moralandethicalaspects plantchromosomes plantcytogenetics plants preimplantationdiagnosis preimplantationgeneticdiagnosis procurementoforgans qh600 qx25d78682004 siblings tissueandorganprocurement tissues wg7200 wo690