Nada Kubikova is a reproductive geneticist doing clinical work and doctoral research in a leading Preimplantation Genetic Diagnosis (PGD) lab in Oxford. PGD can be used during IVF to identify embryos affected by genetic disorders or abnormalities. Nada discusses innovations and ethical issues in her field. She also explains why infertility occurs in women. Nada is a Clarendon Scholar at Oxford University and a member of Brasenose College.