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Latest Gene Stories

Coffee Beer Affects Longevity
2013-12-06 15:35:27

[ Watch the Video: Will Beer Or Coffee Contribute To Your Aging? ] Alan McStravick for redOrbit.com - Your Universe Online Each time our cells replicate in our bodies, the end points of chromosomal DNA - known as telomeres - copy themselves to the new cell, shortening with each subsequent copy until they can no longer keep the cell viable, resulting in its eventual death. However, a group of researchers from Tel Aviv University’s (TAU) Department of Molecular Microbiology and...

2013-12-06 00:03:53

A group of Illinois researchers, led by Centennial Chair Professor of the Department of Chemical and Biomolecular Engineering Huimin Zhao, has demonstrated the use of an innovative DNA engineering technique to discover potentially valuable functions hidden within bacterial genomes.  Their work was reported in a Nature Communications article on December 5, 2013 (DOI: 10.1038/ncomms3894). The genome of every bacterial species contains genes that can synthesize a diverse arsenal of...

Extreme Genomic Evolution Discovered In Burmese Pythons
2013-12-03 07:05:43

[ Watch the Video: Genomics Reveal The Evolution Of Snakes ] April Flowers for redOrbit.com - Your Universe Online A team of researchers have sequenced the genome of the Burmese python, or Python molurus bivittatus, finding large numbers of rapidly evolved genes in snakes. Their findings, published in Proceedings of the National Academy of Sciences (PNAS), reveal that these genetic changes are linked to extreme characteristics in snakes. The discovery of these characteristics,...

2013-11-25 16:37:53

A new view of our chromosomes reveals a complex picture Chromosomes – the 46 tightly-wrapped packages of genetic material in our cells – are iconically depicted as X-shaped formations. However, those neat X’s only appear when a cell is about to divide and the entire contents of its genome duplicated. Until now researchers have not been able to get a good picture of the way that our DNA – some two meters of strands all told – is neatly bundled into the nucleus while enabling...

2013-11-25 13:13:58

A molecular technique that will help the scientific community to analyze -- on a scale previously impossible -- molecules that play a critical role in regulating gene expression has been developed by a research team led by a chemist and a plant biologist at Penn State University. The scientists developed a method that enables more-accurate prediction of how ribonucleic acid molecules (RNAs) fold within living cells, thus shedding new light on how plants -- as well as other living organisms --...

Two Y Genes Can Replace Entire Y Chromosome For Assisted Reproduction In Mice
2013-11-21 15:33:20

University of Hawaii at Manoa The Y chromosome is a symbol of maleness, present only in males and encoding genes important for male reproduction. But live mouse offspring can be generated with assisted reproduction using germ cells from males with the Y chromosome contribution limited to only two genes: the testis determinant factor Sry and the spermatogonial proliferation factor Eif2s3y. "Does this mean that the Y chromosome (or most of it) is no longer needed? Yes, given our current...

2013-11-21 14:16:55

Identifying network of 39 biologically related genes may suggest new targets for treating or preventing alcoholism There is good evidence from studies of families and twins that genetics plays an important role in the development of alcoholism. However, hundreds of genes likely are involved in this complex disorder, with each variant contributing only a very small effect. Thus, identifying individual risk genes is difficult. Using a new approach that combines genome-wide association...

Two Human Proteins Found To Affect How 'Jumping Gene' Gets Around
2013-11-21 13:55:24

Johns Hopkins Medicine Using a new method to catch elusive "jumping genes" in the act, researchers have found two human proteins that are used by one type of DNA to replicate itself and move from place to place. The discovery, described in the Nov. 21 issue of Cell, breaks new ground, they say, in understanding the arms race between a jumping gene driven to colonize new areas of the human genome and cells working to limit the risk posed by such volatile bits of DNA. Jumping genes, more...

2013-11-19 13:16:54

An original model that would explain how regions of the genome that are copied later on facilitate the birth of new genes with specific functions in tissues and organs One of the most important processes in the life of cells is genome replication, which consists of making exact copies of the DNA in order to pass it on to their offspring when they split. In most organisms, from yeast to human beings, genome replication follows a set plan, in which certain regions of the genome replicate...

2013-11-19 12:42:44

Bacteria recycle broken DNA that bacteria can take up small as well as large pieces of old DNA from this scrapheap and include it in their own genome. This discovery may have major consequences – both in connection with resistance to antibiotics in hospitals and in our perception of the evolution of life itself. Our surroundings contain large amounts of strongly fragmented and damaged DNA, which is being degraded. Some of it may be thousands of years old. Laboratory experiments with...


Latest Gene Reference Libraries

Knockout Mouse
2013-10-02 11:52:01

A Knockout Mouse is a genetically engineered mouse in which researchers have inactivated, or “knocked out,” an existing gene by replacing it or disrupting it with an artificial piece of DNA. The loss of gene activity frequently causes changes in a mouse’s phenotype, which includes appearance, behavior, or other apparent and biochemical characteristics. Knockout mice are significant animal models for studying the role of genes which have been sequenced but whose functions haven’t...

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Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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