Wednesday, April 7, 2010 as of 11:14 AM ET
Developmental biology is the study of the process by which organisms grow and develop. Modern developmental biology studies the genetic control of cell growth, differentiation and "morphogenesis", which is the process that gives rise to tissues, organs and anatomy.
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A simple experiment of leaving a room well-lit until midnight instead of turning off the lights at 6 p.
m. cut the fertility rate of lab mice by half – leading some researchers to wonder what effect shift work, all-nighters and other sleep disruptions might have on humans trying to conceive.Researchers at Northwestern University disrupted the circadian rhythms of female mice for five to six days after they mated with male mice. One group of 18 mice got an extra six hours of light; another 18 mice lost daylight.By the end of the experiment, only half of the mice with extra daylight had litters. Mice that lost daylight fared worse – only 20 percent gave birth. Yet 90 percent of a control group of mice gave birth. These control mice had been exposed to a steady 12 hours of daylight, according to the study published today (May 23) in the journal PLoS ONE.Mammals, and even trees, are known to synchronize their internal clocks, which control metabolism and other functions, to cues of nigh...Time to give thanks for your genome: A new study finds that at some point in our evolutionary history, humans lost a stretch of DNA that would have otherwise promote...
Japanese researchers will launch a project this year to resurrect the long-extinct mammoth by using cloning technology to bring the ancient pachyderm back to life in...
Lab-grown human organs may seem like futuristic technology, but in a lab in Kobe, Japan , researchers are growing new retinas in a dish."This retina tissue made in t...
For three years, Connie McPherson had debilitating leg ulcers that were so painful she sometimes couldn't sleep. Despite repeated surgery, antibiotics, steroids and ...
Babies with the genes of three parents could be born within three years, British scientists have announced.Neurologists at Newcastle University in northeastern Engla...
A gene responsible for sperm production is so vital that its function has remained unaltered throughout evolution and is found in almost all animals, according to a ...
Scientists have identified a gene that appears to play a role in regulating how much alcohol people drink and say their finding could help the search for more effect...
A new lottery in the U.K. offering contestants the chance to "win a baby" through expensive in-vitro fertilization treatments is causing a stir.The sweepstakes, run ...
British fertility experts were growing increasingly concerned about the risks posed by "intensive farming" of human eggs from women after one donor produced 85 in a ...
Babies with three biological parents could be conceived in the UK as early as next year, after the British Health Secretary invited scientists to advise whether he s...
Alan confronts anti-abortion activist Dr. Allen Unruh for defending a new S.D. law requiring women to wait 3 days to undergo a legal abortion
LONDON (AP) — Overweight women have a much higher risk of a miscarriage after having in-vitro fertilization compared with slim women, new research says.British docto...
Chinese scientists have cloned a genetically modified sheep containing a "good" type of fat found naturally in nuts, seeds, fish and leafy greens that helps reduce t...
The largest sperm bank in Britain is under investigation from health officials over claims they used sperm from the wrong donor after a gay couple had two children f...
China has ordered a halt to all unapproved stem cell treatments and clinical trials , state media reported on Tuesday, as Beijing seeks to rein in the largely untest...
A team of scientists has reported producing viable sperm using the stem cells of mice in an experiment that researchers hope could one day lead to treating infertile...
More than three decades after Britain produced the world's first test-tube baby, Europe is a patchwork of restrictions for people who need help having a child.Many c...
They look like ordinary baby rhesus macaques, but Hex, Roku and Chimero are the world's first chimeric monkeys, each with cells from the genomes of as many as six rh...
LONDON (AP) — For three years, Connie McPherson had debilitating leg ulcers that were so painful she sometimes couldn't sleep. Despite repeated surgery, antibiotics,...
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