human embryo model: Scientists grow whole model of human embryo without sperm or egg
Scientists at the Weizmann Institute of Science in Israel have successfully grown human embryo-like structures in a lab without using sperm, eggs, or a womb. The researchers used pluripotent stem cells to create synthetic embryo models that closely mimic the development of a real human embryo. These models had all the structures and compartments characteristic of an embryo up to day 14, including the placenta, yolk sac, and chorionic sac.
Source: indiatimes.com