News tagged with molecular reproduction
An eye for the tsetse fly
(PhysOrg.com) -- Geoffrey M. Attardo was one of those little boys who made pets of the spiders outside his bedroom window, feeding them and watching as they spun intricate webs. Age has not diminished his ...
Feb 10, 2012 |
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Researcher argues that sex reduces genetic variation
Biology textbooks maintain that the main function of sex is to promote genetic diversity. But Henry Heng, Ph.D., associate professor in WSU's Center for Molecular Medicine and Genetics, says that's not the case.
Jul 07, 2011 |
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Proteins from male insects affect female behavior
(PhysOrg.com) -- For insects, as for humans, mating can involve complicated interactions between males and females, with each partner engaging in rituals or behaviors that influence the other.
Feb 23, 2011 |
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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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Can clonal plants live forever?
Despite the many cosmetic products, surgical treatments, food supplements, and drugs designed specifically to reverse the biological effects of aging in humans, long-lived aspen clones aren't so lucky. Researchers at the ...
Aug 17, 2010 |
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Biologists' work with 'glow-in-the-dark' sperm sheds light on sexual selection
Previously unobservable events occurring between insemination and fertilization are the subject of a groundbreaking new article in Science magazine (March 18) by Mollie Manier, John Belote and Scott Pitnic ...
Mar 18, 2010 |
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Researchers identify gene with possible link to infertility in mice
Virginia Commonwealth University researchers have identified the role of a gene in regulating molecular signals involved with ovarian follicle development, which may one day help shed light on some of the causes of fertility ...
Oct 02, 2009 |
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Will IVF work for a particular patient? The answer may be found in her blood
For the first time, researchers have been able to identify genetic predictors of the potential success or failure of IVF treatment in blood. Dr. Cathy Allen, from the Rotunda Hospital, Dublin, Ireland, told the 25th annual ...
Medicine & Health / Diseases, Conditions, Syndromes
Jul 01, 2009 |
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Recruitment of reproductive features into other cell types may underlie extended lifespan in animals
In the sense that organisms existing today are connected through a chain of life - through their parents, grandparents and other ancestors - almost a billion years back to the first animals of the pre-Cambrian era, an animal's ...
Jun 07, 2009 |
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Drugs needed to preserve eggs for reproduction need to be given in stages
Cryoprotectants needed to preserve eggs for reproduction need to be given in stages, albeit rapid ones, say scientists who have developed a mathematical model that predicts optimal time for loading and unloading ...
Apr 29, 2009 |
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Researchers clone key sperm-binding proteins
New treatments for infertility could be closer to reality, thanks to a discovery from scientists at the Université de Montréal and Maisonneuve-Rosemont Hospital Research Centre. According to ...
Medicine & Health / Medical research
Mar 17, 2009 |
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