Female only sperm
Female sperm can be either: A sperm that contains an X chromosome, produced in the usual way by a male, referring to the occurrence of such a sperm.
Motherless babies possible as scientists create live offspring without need for female egg
Getting pregnant
However, in women, you just can't predict it," Mr Gellatly explains. Men determine the sex of a baby depending on whether their sperm is.
Description:Advanced Search Abstract At coitus, human sperm are deposited into the anterior vagina, where, to avoid vaginal acid and immune responses, they quickly contact cervical mucus and enter the cervix. Cervical mucus filters out sperm with poor morphology and motility and as such only a minority of ejaculated sperm actually enter the cervix. In the uterus, muscular contractions may enhance passage of sperm through the uterine cavity. A few thousand sperm swim through the uterotubal junctions to reach the Fallopian tubes uterine tubes, oviducts where sperm are stored in a reservoir, or at least maintained in a fertile state, by interacting with endosalpingeal oviductal epithelium.
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