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
5 / 5 (29)
15
|
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
4.9 / 5 (21)
10
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 ...
Dec 01, 2009
4.6 / 5 (21)
12
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 ...
Jun 30, 2009
3.9 / 5 (10)
3
(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
4.7 / 5 (6)
0
|
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
5 / 5 (4)
0
|
(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 ...
Dec 22, 2009
4.5 / 5 (4)
0
Neil Hunter's laboratory in the UC Davis College of Biological Sciences has placed another piece in the puzzle of how sexual reproduction shuffles genes while making sure sperm and eggs get the right number ...
Feb 13, 2013
4 / 5 (4)
2
|
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
5 / 5 (3)
0
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
5 / 5 (3)
0
When humans have parasites, the organisms live in our bodies, co-opt our resources and cause disease. However, it turns out that parasites themselves can have their own co-habitants.
Nov 07, 2012
4.3 / 5 (3)
0
|
(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
3.7 / 5 (3)
8
