This new piece of work published in Plos One and led by the UPV/EHU researcher Nerea Subirán describes for the first time the presence of opioid receptors in the cells involved in spermatozoon ...

This new piece of work published in Plos One and led by the UPV/EHU researcher Nerea Subirán describes for the first time the presence of opioid receptors in the cells involved in spermatozoon ...

This new piece of work published in Plos One and led by the UPV/EHU researcher Nerea Subirán describes for the first time the presence of opioid receptors in the cells involved in spermatozoon ...

With the exception of identical twins, all humans are genetically unique. During conception, a paternal sperm cell (spermatozoon) fuses with a maternal egg cell (ovum). The resulting embryo will have ...

A single spermatozoon is selected and injected into an oocyte via an injection pipette, which is a thin glass capillary. If fertilization takes place, the embryo thus formed is transferred after 2 ...

A sperm is the male reproductive cell. The full name for a sperm that has a single flagellum (or "tail") to propel it along is a spermatozoon. Unlike this motile sperm, when a sperm lacks a ...