Sperm donation — is the provision (or ‘donation’) by a man, (known as a ‘sperm donor’), of his sperm, with the intention that it be used to impregnate a woman who is not usually the man s sexual partner, in order to produce a child. A sperm donor is the natural… … Wikipedia
Sperm whale — Sperm Whale[1] Size compared to an average human … Wikipedia
Sperm heteromorphism — is the simultaneous production of two or more distinguishable types of sperm by a single male. The sperm types might differ in size, shape and/or chromosome complement. Sperm heteromorphism is also called sperm polymorphism or sperm dimorphism… … Wikipedia
Sperm competition — is competition between sperm of two or more males for the fertilization of an ovum (Parker 1970). Sperm competition is often compared to having tickets in a raffle; a male has a better chance of winning (i.e. fathering offspring) the more tickets … Wikipedia
Sperm sorting — is a means of sex selection in which spermatozoa are separated into X (female) and Y (male) chromosome bearing populations based on their difference in DNA content. The resultant sex sorted spermatozoa are then able to be used in conjunction with … Wikipedia
sperm — sperm·ine; sperm·ism; sperm·ist; sperm·oviduct; zoo·sperm; zy·go·sperm; agamo·sperm·ous; peri·sperm·al; … English syllables
Sperm washing — is a term used to describe the process in which individual sperm are separated from the seminal fluid by spinning it in a centrifuge. The Sperm are then used in intrauterine insemination or in vitro fertilization. Sperm washing is a standard… … Wikipedia
Sperm motility — describes the ability of sperm to move properly towards an egg. This can also be thought of as the quality of the sperm, which is a factor in successful pregnancies, as opposed to the quantity . Sperm which do not properly swim will not reach the … Wikipedia
Sperm — Sperm … Википедия
Sperm — Studioalbum von Oomph! Veröffentlichung 1994 Label Noise Records … Deutsch Wikipedia
Sperm — Sperm, n.[Contr. fr. spermaceti.] Spermaceti. [1913 Webster] {Sperm oil}, a fatty oil found as a liquid, with spermaceti, in the head cavities of the sperm whale. {Sperm whale}. (Zo[ o]l.) See in the Vocabulary. [1913 Webster] … The Collaborative International Dictionary of English
