Chen Solves Sperm Mystery, Providing Insight on Infertility
Michigan State University researchers have solved the mystery of a poorly understood sperm structure called the cytoplasmic droplet, or CD. The CD is an expanded cytoplasm — watery, gel-like cell contents enclosed by cell membrane — found close to the head, at the neck of the sperm, in all mammals, including humans. This new genetic model is the first of its kind.