WASHINGTON – A procedure that encourages an egg to begin embryo development without being fertilized could suggest a new way to produce stem cells, at least for certain patients. Researchers were able ...

In 1995, a boy made medical history when scientists learned he was partly the product of parthenogenesis — a process that occurs when an offspring results from an unfertilized egg. More than two ...

Freezing embryos, women's eggs fertilized with sperm, has been done in fertility clinics for decades, but now science has improved upon freezing unfertilized eggs to use in the future. Typically ...

Jack has a degree in Medical Genetics from the University of Leicester.View full profile Jack has a degree in Medical Genetics from the University of Leicester. To us mere humans, the concept of ...

Scientists have long known that the social insects in the order Hymenoptera–which includes ants, bees, and wasps–have an unusual mechanism for sex determination: Unfertilized eggs develop into males, ...

A biotech firm recently made news by claiming to have cloned human embryos in order to produce medically useful stem cells (SN: 12/1/01, p. 341: Human-cloning claim creates controversy). At the time, ...

Unfertilized soybean fields with lower soil fertility should be planted earlier than high fertility fields, according to a University of Illinois Urbana-Champaign study that re-evaluates longtime soil ...

SANTA CRUZ, CA--Scientists have long known that the social insects in the order Hymenoptera--which includes ants, bees, and wasps--have an unusual mechanism for sex determination: Unfertilized eggs ...