Sperm Head

Mammalian fertilization relies on sperm finding the egg and penetrating the egg vestments. All steps in a sperm's lifetime… Expand

BACKGROUND In sea urchins, spermatozoan motility is altered by chemotactic peptides, giving rise to the assumption that mammalian… Expand

Understanding why there is extensive variation in sperm form and function across taxa has been a challenge because sperm are… Expand

The enclosure of nuclear contents in eukaryotes means that cells require sites in the boundary that mediate exchange of material… Expand

Intracytoplasmic sperm injection (ICSI) into mouse oocytes involves a very low survival rate. This study was designed to… Expand

MANY indirect methods have been developed to study the constitu-tion and conformation of macromolecules inside the living cell… Expand

In the mouse, the zona pellucida (ZP) glycoprotein ZP3 both binds intact sperm and induces acrosomal exocytosis. The subsequent… Expand

Past studies have suggested that mouse sperm surface galactosyltransferase may participate during fertilization by binding N… Expand

The normal occurrence of preputial separation was determined in 4 groups of rats by daily attempts after 30 days of age to… Expand

Abstract There is abundant evidence based upon study of both protozoa and metazoa that microtubules are involved in the… Expand