News tagged with genetic material
On May 22, JoVE will publish details of a technique to measure the health of human genetic material in relation to a patient's age. The method is demonstrated by the laboratory of Dr. Gil Atzmon at New York's Albert Einste ...
Medical research May 22, 2013 | 5 / 5 (1) | 0
Researchers discovered that small pieces of genetic material called microRNAs link the two defining characteristics of fit muscles: the ability to burn sugar and fat and the ability to switch between slow- ...
Medical research May 08, 2013 | 5 / 5 (2) | 0 |
Researchers at the Epigenetics and Cancer Biology Program at IDIBELL led by Manel Esteller, ICREA researcher and professor of genetics at the University of Barcelona, have described alterations in noncoding ...
Genetics May 02, 2013 | 3 / 5 (2) | 0
Blocking certain enzymes in the cell may prevent cancer cell division and growth, according to new findings from researchers at the Graduate School of Biomedical Sciences at the Icahn School of Medicine at Mount Sinai. The ...
Cancer Apr 25, 2013 | 5 / 5 (1) | 1
Mass DNA sampling led to the jailing Friday of a father-of-two for the shocking rape and murder of a teenaged girl in a rural part of the Netherlands 14 years ago.
Genetics Apr 19, 2013 | 5 / 5 (2) | 0
A key building block in the Schmallenberg virus could be targeted by anti-viral drugs, according to a new study led from the University of Leeds.
Medical research Apr 17, 2013 | not rated yet | 0 |
Exosomes are small, virus-like particles that can transport genetic material and signal substances between cells. Researchers at Lund University, Sweden, have made new findings about exosomes released from aggressive brain ...
Medical research Apr 17, 2013 | 4.5 / 5 (2) | 0 |
Researchers have discovered that rising temperature induces key changes in the dengue virus when it enters its human host, and the findings represent a new approach for designing vaccines against the aggressive ...
Diseases, Conditions, Syndromes Apr 11, 2013 | 5 / 5 (1) | 0 |
In a first-of-its-kind experiment using microvesicles generated from mesenchymal bone marrow cells (MSCs) to treat cancer, neurological researchers at Henry Ford Hospital have discovered a novel approach for treatment of ...
Cancer Apr 01, 2013 | 5 / 5 (1) | 0 |
Until now most experimental vaccines against the highly lethal H5N1 avian influenza virus have lacked effectiveness. But a new vaccine has proven highly effective against the virus when tested in both mice and ferrets. It ...
Diseases, Conditions, Syndromes Mar 25, 2013 | 5 / 5 (3) | 0 |
Britain's fertility regulator says it has found broad public support for in vitro fertilization techniques that allow babies to be created with DNA from three people for couples at risk of passing on potentially fatal genetic ...
Obstetrics & gynaecology Mar 20, 2013 | 5 / 5 (1) | 1
When timing is everything: Research says beneficial mutations need specific circumstances to win out
When it comes to the sort of beneficial mutations that drive natural selection, there's new evidence that, evolutionarily speaking, timing is everything.
Genetics Mar 20, 2013 | 5 / 5 (1) | 4 |
Researchers from Basque Public University are using nanotechnology to develop new formulations that can be applied to drugs and gene therapy. Specifically, they are using nanoparticles to design systems for ...
Genetics Feb 28, 2013 | 5 / 5 (1) | 0
As she swabbed the inside of his cheek, Patt Heise assured her 84-year-old father that she wasn't crazy, just curious. She mailed off the saliva sample and waited for results. Her dad died a month later, too early to find ...
Genetics Feb 22, 2013 | not rated yet | 1
A new form of genetic testing of the bacteria that causes tuberculosis can provide better information on TB transmission and also trace TB outbreaks more accurately than the current standard test, according to a study from ...
Diseases, Conditions, Syndromes Feb 19, 2013 | not rated yet | 0 |
A gene is the basic unit of heredity in a living organism. All living things depend on genes. Genes hold the information to build and maintain their cells and pass genetic traits to offspring. A modern working definition of a gene is "a locatable region of genomic sequence, corresponding to a unit of inheritance, which is associated with regulatory regions, transcribed regions, and or other functional sequence regions " . In common usage, the term gene often refers to what is known more accurately as an allele.
The notion of a gene has evolved with the science of genetics, which began when Gregor Mendel noticed that biological variations are inherited from parent organisms as specific, discrete traits. The biological entity responsible for defining traits was termed a gene, but the biological basis for inheritance remained unknown until DNA was identified as the genetic material in the 1940s. All organisms have many genes corresponding to many different biological traits, some of which are immediately visible, such as eye color or number of limbs, and some of which are not, such as blood type or increased risk for specific diseases, or the thousands of basic biochemical processes that comprise life.
In cells, a gene is a portion of DNA that contains both "coding" sequences that determine what the gene does, and "non-coding" sequences that determine when the gene is active (expressed). When a gene is active, the coding and non-coding sequences are copied in a process called transcription, producing an RNA copy of the gene's information. This piece of RNA can then direct the synthesis of proteins via the genetic code. In other cases, the RNA is used directly, for example as part of the ribosome. The molecules resulting from gene expression, whether RNA or protein, are known as gene products, and are responsible for the development and functioning of all living things.
In more technical terms, a gene is a locatable region of genomic sequence, corresponding to a unit of inheritance, and is associated with regulatory regions, transcribed regions and/or other functional sequence regions. The physical development and phenotype of organisms can be thought of as a product of genes interacting with each other and with the environment. A concise definition of a gene, taking into account complex patterns of regulation and transcription, genic conservation and non-coding RNA genes, has been proposed by Gerstein et al.: "A gene is a union of genomic sequences encoding a coherent set of potentially overlapping functional products".
For more information about Gene, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.