Sergio K. Dominguez evaluates and prepares gametes and embryos at an in vitro fertilisation clinic in Buffalo, New York. Working as a clinical embryology specialist, he has assessed and graded thousands of embryos under the microscope for patient transfers. Dominguez worked in academic reproductive biology laboratories investigating gamete cellular development prior to entering clinical practice. He received a master’s in reproductive biology and maintains laboratory systems that support egg retrieval and fertilization procedures.