Freezing eggs is expensive. A single cycle, including medication, costs an average of $12,000 to $15,000, plus another $500 to $1,000 each year for storage. Thawing and fertilizing the eggs later on ...

Cancer cells splitting. A blood clot. And human sperm cells on the surface of an egg. But what about a transmission electron microscope? The difference with a transmission electron microscope is ...

the sperm is provided by a donor who is not the woman's partner HIV and human lymphocytes seen through an electron microscope HIV stands for Human Immunodeficiency Virus. This infection is ...