The smallest particle of a substance that has all of the physical and chemical properties of that substance. Molecules are made up of two or more atoms - for example, a molecule of water is made up of two atoms of hydrogen and one of oxygen.
Researchers in Japan have successfully grown sperm for the first time in a study that could eventually help preserve the fertility of cancer patients and help infertile men have children....
Progesterone released from an egg may help guide sperm towards it and assist sperm to penetrate the egg's protective layers, according two studies published in Nature...
Scientists from Stanford University, California, have compared human and chimpanzee genomes, revealing intriguing differences that may underlie the evolution of our species....
US researchers have found a correlation between levels of the brain chemical neuropeptide Y (NPY) and an individual's emotional wellbeing. Mutations in the NPY gene, leading to decreased levels of the molecule, correlated with a decreased ability to deal with stressful situations and an increased susceptibility to depression....
The genetic basis for a previously unexplained medical condition which causes a painful hardening of the arteries has been identified by the US Undiagnosed Diseases Program (UDP)....
In June 2010, Teachers.TV issued a series of five videos on 'Genetics and Medicine' (1), covering important elements of genetics aimed at school students between the age of 14 and 16 (2)....
The Lasker Foundation has awarded UK scientist, Professor David Weatherall from Oxford University its prestigious Lasker-Koshland Award for Special Achievement in Medical Science...
Researchers have found a molecule that they believe plays a key role in ovarian hyperstimulation syndrome (OHSS) - a potentially life-threatening condition that can arise from IVF treatment....
US scientists have identified a genetic trait that is strongly associated with autism. The genetic change does not involve a mutation within the DNA sequence of a gene but instead involves an alteration in the physical structure of the DNA which affects the way a gene is turned on and off. The researchers hope that the new findings will lead to novel ways to diagnose and treat autism....
US scientists have developed a new technique to help them genetically modify bacteria. This new technology may prove to be a crucial step in the eventual creation of a man-made bacterium which, if achieved, would be the first-ever synthetic organism....
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