News tagged with human reproduction
Biologists discover how yeast cells reverse aging
Human cells have a finite lifespan: They can only divide a certain number of times before they die. However, that lifespan is reset when reproductive cells are formed, which is why the children of a 20-year-old ...
Jun 24, 2011 |
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Viral phenomenon: Ancient microbe invaded human DNA
Humans carry in their genome the relics of an animal virus that infected their forerunners at least 40 million years ago, according to research published Wednesday by the British science journal Nature.
Jan 06, 2010 |
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Why females live longer than males: is it due to the father's sperm?
Researchers in Japan have found that female mice produced by using genetic material from two mothers but no father live significantly longer than mice with the normal mix of maternal and paternal genes. Their findings provide ...
Medicine & Health / Medical research
Dec 01, 2009 |
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Why sex with a partner is better (w/ Video)
(PhysOrg.com) -- OK, it takes two for human reproduction, and now it seems that plants and animals that can rely on either a partner or go alone by self-fertilization give their offspring a better chance for ...
Oct 21, 2009 |
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Daily sex helps to reduce sperm DNA damage and improve fertility
Daily sex (or ejaculating daily) for seven days improves men’s sperm quality by reducing the amount of DNA damage, according to an Australian study presented today (Tuesday) to the 25th annual meeting of the European Society ...
Medicine & Health / Medical research
Jun 30, 2009 |
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Evolution of human sex roles more complex than described by universal theory
A new study challenges long-standing expectations that men are promiscuous and women tend to be more particular when it comes to choosing a mate. The research, published by Cell Press in the April issue of the journal Trends in ...
Apr 24, 2009 |
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In praise of the Y chromosome
(PhysOrg.com) -- David Page, director of the Whitehead Institute and professor of biology at Massachusetts Institute of Technology, says research indicates the much-maligned Y chromosome plays a more critical ...
Apr 20, 2010 |
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Why the biological clock? Study says aging reduces centromere cohesion, disrupts reproduction
University of Pennsylvania biologists studying human reproduction have identified what is likely the major contributing factor to the maternal age-associated increase in aneuploidy, the term for an abnormal ...
Sep 08, 2010 |
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New human reproductive hormone could lead to novel contraceptives
(PhysOrg.com) -- Nearly 10 years after the discovery that birds make a hormone that suppresses reproduction, University of California, Berkeley, neuroscientists have established that humans make it too, opening ...
Medicine & Health / Medical research
Dec 22, 2009 |
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Meet the complete mouse -- whole mouse genome sequence published
Are you a man or a mouse? A new paper, published in this week's issue of PLoS Biology, explores exactly what distinguishes our genome from that of the lab mouse. In the first comprehensive comparison betwee ...
May 27, 2009 |
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Scientists turn stem cells into precursors for sperm, eggs
Human embryonic stem cells derived from excess IVF embryos may help scientists unlock the mysteries of infertility for other couples struggling to conceive, according to new research from the Stanford University School of ...
Oct 28, 2009 |
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Vatican: Nobel to IVF pioneer raises questions
(AP) -- The Vatican's top bioethics official said Robert Edwards, who received the Nobel Prize in medicine Monday for developing in vitro fertilization, opened "a new and important chapter in the field of hum ...
Oct 04, 2010 |
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High levels of cycling training damage triathletes' sperm
The high-intensity training undertaken by triathletes has a significant impact on the quality of their sperm, the 25th annual conference of the European Society of Human Reproduction and Embryology heard today (Monday 29 ...
Jun 29, 2009 |
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Researchers develop accurate way to predict the age when women will hit the menopause
Researchers have developed a way of accurately predicting when women will hit the menopause using a simple blood test. The average difference between the predicted age and the actual age that the women in their study reached ...
Medicine & Health / Medical research
Jun 27, 2010 |
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Scientists develop the first model for investigating the origins of testicular cancer in humans
Scientists have developed a model that will enable them to investigate, for the first time, how human testes develop in baby boys while they are in the womb. Until now it has been impossible to study testicular development ...
Aug 03, 2010 |
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Human reproduction
Human reproduction is any form of sexual reproduction resulting in the conception of a child, typically involving sexual intercourse between a man and a woman. During sexual intercourse, the interaction between the male reproductive system and the female reproductive system results in fertilization of the woman's ovum by the man's sperm, which after a gestation period is followed by childbirth. The fertilization of the ovum may nowadays be achieved by artificial insemination methods, which do not involve sexual intercourse.
For more information about Human reproduction, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
