Human embryonic stem cells (hESCs) from a single cell, or blastomere, of a 4-cell stage embryo have been successfully created by scientists. The researchers believe that their findings might make ...

During embryonic development, thousands of cells divide and move collectively, sculpting the main body axes from an initially ...

Researchers use these spatially organized colonies to study gene expression and the role of cell density in embryo development. (4) Post-Implantation Embryo Models: Scientists differentiated PSCs ...

Embryo models differ from an actual embryo in that they are stem cell-based, so they can be made easily and in high numbers, according to the Francis Crick Institute in London. Current embryo ...

Live imaging of embryos at different stages. Chromosomes are labeled in magenta. 4-cell sister blastomeres are shown, along with 3D-reconstructed images of 2-to-4-cell and 4-to-8-cell divisions.

trained a neural network to predict the precise developmental time for every cell. "Even though the collected samples contained embryos with slightly different ages within a 2- or 4-hour time ...

The 4-cell embryo can now be seen as a transitional stage during which uniform DNA replication becomes sequential, while still showing slow fork movement characteristic of 1- and 2-cell embryos.

The 4-cell embryo can now be seen as a transitional stage during which uniform DNA replication becomes sequential, while still showing slow fork movement characteristic of 1- and 2-cell embryos.

A study published today in the journal Developmental Cell uncovers new insights into how the heart forms during the earliest stages of embryonic development.

About 24 hours after fertilization, the first DNA copy and cleavage occurs, resulting in a 2-cell embryo. Roughly 12–18 hours later, this copy and cleavage process happens again, resulting in a 4-cell ...

For the first time in the world scientists have succeeded in developing human embryonic stem cells (hESCs) from a single cell, or blastomere, of a 4-cell stage embryo, the 24th annual conference of ...

During embryonic development, thousands of cells divide and move collectively to sculpt the main body axes. Understanding the mechanisms that ...