This microscope image provided by Osaka University and the Research Institute of Molecular Pathology in October 2024, shows the fertilization of a mouse egg marked in red and green. DNA is marked in ...

It's a commonly held belief: Sperm cells are like runners in an epic race, competing against each other for access to the coveted egg at the finish line. The egg, in turn, waits patiently for the ...

After the egg has been fertilized by a sperm, the surrounding egg coat tightens, mechanically preventing the entry of additional sperm and the ensuing death of the embryo. This is according to a new ...

Research into how a father’s choices — such as diet, exercise, stress, nicotine use — may transfer traits to his children has become impossible to ignore.

Eggs or sperm donated for the purpose of assisted reproductive technology may not be used for any destructive purposes, including but not limited to: Scientific or clinical research; Development of ...

At least 197 children, some of whom are British, have been placed at high risk of cancer because they were conceived using a Danish sperm donor who had a faulty gene. Already, some of the children ...

How a sperm and an egg fuse together has long been a mystery. New research by scientists in Austria provides tantalizing clues, showing fertilization works like a lock and key across the animal ...

Read full article: Florida GOP governor hopeful criticizes Trump-backed candidate with controversial ‘slave’ remark A system will bring beneficial rain to our area. Read full article: Coast Guard ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. How a sperm and an egg fuse together has ...