Human sperm (spermatozoon, spermatozoa), coloured scanning electron micrograph (SEM). A spermatozoon (motile male sperm) joins an ovum (female egg) to

---

Human sperm (spermatozoon, spermatozoa), coloured scanning electron micrograph (SEM). A spermatozoon (motile male sperm) joins an ovum (female egg) to form a zygote. A zygote is a single cell, with a complete set of chromosomes, that normally develops into an embryo. Sperm cells contribute approximately half of the nuclear genetic information to the diploid offspring (excluding mitochondrial DNA). Magnification: x725 when shortest axis printed at 25 millimetres.

---

Size: 3335px × 2620px
Photo credit: © DENNIS KUNKEL MICROSCOPY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 97086b, cell, cells, colored, coloured, electron, false-colored, false-coloured, flagellates, gamete, gametes, haploid, head, human, male, medical, micrograph, motile, reproduction, scanning, sem, sperm, spermatozoan, tail