The following references illustrate the fact that a new human embryo, the starting point for a human life, comes into existence with the formation of the one-celled zygote: "Development of the embryo ...

In vitro fertilization affects the regulatory region of genes essential for placental and embryonic growth, as well as the birth weight. A new study suggests that the effects depend on genetic ...

Another hurdle has emerged that must be overcome for long-term space habitation and the colonization of Mars. On the 26th (local time), a team led by Professor Nicole McPherson from the University of ...

Embryonic morphological development is delayed in live pregnancies ending in miscarriage, according to a prospective cohort study from the Netherlands. Among over 600 singleton pregnancies, those ...

The donation of a miniscule human embryo the size of a poppy seed has given scientists an extremely rare glimpse into an early stage of human development that has long been difficult to study, the ...

Successful fertility treatments, including in vitro fertilization (IVF), is often reliant on a clear understanding of developmental stages of human development. Clinicians working with assisted ...

Smoking by mothers during the period immediately before and after conception is linked to a delay in embryonic development, smaller foetuses at the time of the 20-week ultrasound scan, and lower birth ...

The research team discovered that glassware used to manipulate and culture fertilized eggs in the fields of assisted reproductive technology (ART), livestock farming, and basic research contains toxic ...

The biological and legal definitions of “embryo” don’t match, and that will become a problem, according to Nicolas Rivron, PhD, of the Institute of Molecular Biotechnology of the Austrian Academy of ...