It began with a sperm, the smallest cell in the human body, fusing with the biggest cell… an egg. Every day, the human male produces hundreds of millions of DNA torpedoes, otherwise known as sperm.

As viewed from a human perspective, nature has done some ingenious ... With only half the DNA, when the parent cell combines with another parent cell, the proper amount of DNA is maintained.

For the first time, Oregon State researchers in the US have used cloning techniques to create human embryonic stem ... the nucleus of a donated human egg cell with it. Stem cells have been a ...

Two weeks after a human egg is fertilized ... Mitinori Saitou, a professor of cell biology, and his fellow researchers announced they successfully created pro-spermatogonia and oogonia by ...