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In vitro fertilization A technique by which an ovum is
fertilized with sperm in a laboratory dish and subsequently implanted in a
uterus for gestation is known as in vitro fertilization.. In the late 1970s the widely publicized use of in
vitro fertilization (IVF) gave new hope to many women with defective Fallopian
tubes; in IVF, an ovum taken from the woman’s body is fertilized by the
man’s sperm in the laboratory and then returned to the woman’s uterus. Use
of this method has been growing rapidly. Women have also been implanted with the
ovum of another woman after it was fertilized by IVF or regular artificial
insemination techniques. In the 1990s, IVF was used to enable women well past
menopause to become pregnant, with an egg donated by a younger woman; through
this method a 63-year old woman in the U.S. gave birth in 1996. In the practice known as surrogate mothering a
second woman is inseminated with the sperm of a man whose wife is infertile, to
bear a child for the couple. View of in-vitro fertilization (IVF) process through a video light microscope
In vitro fertilization by brother's sperms
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