Skip to main content

Scientists grow whole model of human embryo, without sperm or egg

Science,Biology

From the Center

Scientists have grown an entity that closely resembles an early human embryo, without using sperm, eggs or a womb.

The Weizmann Institute team say their "embryo model", made using stem cells, looks like a textbook example of a real 14-day-old embryo.

It even released hormones that turned a pregnancy test positive in the lab.

The ambition for embryo models is to provide an ethical way of understanding the earliest moments of our lives.

The first weeks after a sperm fertilises an egg is a period of dramatic change - from a collection of indistinct cells to something that eventually becomes recognisable on a baby scan.

AllSides Picks

More News about Science

News from the Left

News from the Center

News from the Right