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Sperm storage organs in the fruit fly Drosophila melanogaster.Female was first mated with GFP-male and then re-mated with RFP-male. Female sperm storage is a biological process and often a type of sexual selection in which sperm cells transferred to a female during mating are temporarily retained within a specific part of the reproductive tract before the oocyte, or egg, is fertilized.
Cryptic female choice is a form of mate choice which occurs both in pre- and post-copulatory circumstances in which females of certain species use physical or chemical mechanisms to control a male's success of fertilizing their ova or ovum; i.e. by selecting whether sperm are successful in fertilizing their eggs or not.
The Big Bang Theory's pilot episode satirizes the repository when Leonard and Sheldon visit the "high-IQ sperm bank," intending to donate specimens, only to leave after Sheldon suffers a moral crisis over committing "genetic fraud" by donating sperm that may not produce the promised genius offspring. [7]
More than 40 years after a couple sought the help of a Boston, Massachusetts, fertility specialist, their daughter discovered through a purchased DNA kit that the doctor is her biological father ...
The embryo implanted in the surrogate may be fertilised using sperm from the male partner of the 'commissioning couple', or by using sperm provided by a sperm donor. Embryo donation is where extra embryos from a successful IVF of a couple are given to other couples or women for transfer with the goal of producing a successful pregnancy.
A woman who becomes pregnant by a sperm donor will be the recipient of his genetic material but the two may never even meet. Artificial insemination, which is the normal method of introducing donor sperm into a woman's body, thus becomes a substitute for sexual intercourse. If the woman becomes pregnant, the resulting pregnancy will be no ...
A Netflix docuseries has put a spotlight on the unregulated world of sperm donation, particularly the lack of stopgap measures that might prevent donors who have been banned by one country from ...
Female sperm can refer to either: A sperm which contains an X chromosome, produced in the usual way in the testicles, referring to the occurrence of such a sperm fertilizing an egg and giving birth to a female. [1] A sperm which artificially contains genetic material from a female. [2]