Research reveals that variability in when and how cells divide in embryos is beneficial for development. By studying embryos from mice, rabbits, and monkeys, the team found that this randomness helps ...

There is variability in when and how cells divide during the development of embryos. While researchers traditionally believed this variability was an obstacle that needed to be regulated, the ...

We all start our lives as symmetric balls of cells. In humans, during the first few weeks after fertilization, embryonic ...

Unveiling the mysteries of cell division in embryos with timelapse photography With the help of medaka fish, CRISPR and new imaging techniques, researchers have set a new standard for studying ...

Life on Earth may have developed the ability to form embryos even before it grew the very first animals. A single-celled ...

The stem cells for embryonic stem (ES) cell research usually come from embryos left over from in vitro fertilization (IVF) clinics. In an IVF clinic, scientists combine a man’s sperm and a woman ...

After a sperm fertilizes an egg, the totipotent cell divides into a zygote. As division continues, some cells divide into the growing mass, distinguishing cells that form the embryo (epiblast) from ...

Like all complex organisms, every human originates from a single cell that multiplies through countless cell divisions.

If you took high school biology, you probably learned about cell division: a crucial process in all life forms officially called mitosis. For over one hundred years, students have learned that ...