Tag: "identical" at biology news

Clones on task serve greater good, evolutionary study shows

...ng the creatures that produce scads of genetically identical offspring like microbes, plants or water fleas. T...eporting how the greater good of a genetic pool of identical organisms is affected when a few individuals break from the developmental pack. Ian Dworkin, an ass...

Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes

...erent rat strains; the strains possessed virtually identical nuclear genomes but different mitochondrial genomes. This eliminated any complicating effects due to environmental factors or variation in the nuclear genome. Any differences observed between the two rat strains could be attributed to variation in ...

A unique arrangement for egg cell division

..., an oocyte does not divide equally to produce two identical daughter cells. Instead, it undergoes a reducing division, which halves its genetic material to generate a single egg cell with 23 instead of the normal 46 chromosomes in humans. It is crucial that the egg has half the normal set of chromosomes, beca...

Sugar and spice and everything nice: Health differences in newborn girls and boys

...le and female newborn hearts are not metabolically identical and have different metabolic responses to ischemia; and newborn female hearts can develop greater acidosis during ischemia, which may place them at greater metabolic risk According to the research team, the results suggest that the response ...

New mechanism links smoking to lung damage

... to the cell surface. They usually connect with an identical hemichannel from an adjoining cell to form a gap junction. By directly connecting two cells, gap junctions enable them to exchange the chemical signals they use to coordinate their activities and maintain metabolic and ionic homeostasis among connect...

Scientists prove that disputed Korean stem cell line comes from an unfertilized egg and not cloning

...may provide stem cells that are nearly genetically identical to the donor and, therefore, particularly well suited for customized, rejection-proof cell transplantation therapies. To better understand the specific genetic recombination events that occur in ES cells derived by these different methods, research...

Negative effects of plastic's additive blocked by nutrient supplements

...large yellow mice and the normal brown mice showed identical genetic makeup, yet strikingly different appearances. Just as importantly, when pregnant mothers were also given folic acid or genistein, the epigenetic influence of BPA was counteracted, she added. BPA is a synthetic estrogen first synthesized i...

News tips from the Journal of Neuroscience

...rs can be di-heteromeric, two NR1 subunits and two identical NR2 subunits, they can also be tri-heteromeric, containing NR1, NR2A, and NR2B subunits. Al- Hallaq et al. set out to examine receptors according to subunit content. The authors performed serial immunoprecipitations on membrane fractions from rat hip...

After a decades-long search, scientists identify new genetic risk factors for multiple sclerosis

...onmental factor. Having a relative, especially an identical twin, with MS increases one's risk of developing the disease. In the mid-1970s, researchers discovered that human leukocyte antigens (HLA) account for some of this genetic susceptibility. HLAs are proteins displayed on all the body's cells to help ...

How to structure a complex body plan

...s. Coral colonies are made of multiple genetically identical physiologically integrated modules (polyps). Like other sedentary colonial marine organisms, corals may generate extremely broad structures, changing their morphologies by growing new polyps above existing structures. In branching forms, two higher l...

Ability to listen to 2 things at once is largely inherited, says twin study

...g skills are hereditary, NIDCD researchers studied identical and fraternal twins who attended a national twins ...-sex pairs of twins participated in the study (138 identical pairs and 56 fraternal pairs), representing ages 12 through 50. All twins received a DNA test to con...

American Chemical Society's Weekly PressPac -- July 11, 2007

...al tomatoes that had been dried and archived under identical conditions from 1994 to 2004. The levels of flavonoids increased over time in samples from organic treatments, whereas the levels of flavonoids did not vary significantly in conventional treatments, their report stated. Increases corresponded with ...

Crystal structure enables tailoring of pharmaceuticals against asthma

...lear from the structure that the protein has three identical subunits, each of them consisting of four spiral structures that span the nuclear membrane. Also the exact position and characteristics of the active sites, where activating or blocking molecules can bind, have been identified. With this knowledge it...

Sour taste make you pucker? It may be in your genes

...solution as sour. Because MZ twins have nearly identical genes while DZ twins share only about 50% of their genes, more similar responses in MZ than DZ pairs suggests that genes help determine sensitivity to the taste in question. Responses were compared within the twin pairs, and then entered into a co...

White blood cells are picky about sugar

...hat neutrophils can distinguish between two nearly identical chemicals. These results show that engulfment and killing by neutrophils varies, depending on cell wall properties of the microbe, explains Whitehead postdoctoral researcher Ifat Rubin-Bejerano, first author on the paper, which appears July 11 in t...

Has science unearthed the Holy Grail of pain relief?

... as P2X receptors. In humans, P2X receptors look identical to one another and so scientists have had difficulty understanding how they function, said Dr Chris Thompson, who carried out the research with Professor Alan North and Dr Sam Fountain in the Faculty of Life Sciences. By looking at slime mould we w...

Cloning the male genome may help infertile men

...and the sperm genome was found to be chromosomally identical to its originator in over 80% of the clones analysed. The resulting cells were fused with an egg that had been previously chemically activated. The cells so derived had chromosomes from both parents and these were allowed to develop into blastocy...

Mother-of-pearl -- Classic beauty and remarkable strength

... bricks, each an irregular column of crystals with identical composition but a crystal orientation different than neighboring columns. Since orientation affects how crystals emit electrons, "some of the columns of bricks appear white and others appear black and more appear gray, depending on their crystal or...

New method for reading DNA sheds light on basis of cell identity

...r understanding how cells in the body with nearly identical DNA assume such different forms and functions, said co-senior author Bradley Bernstein, an associate member at the Broad Institute and an assistant professor at Massachusetts General Hospital and Harvard Medical School. By applying a new technology ...

Cord blood may preserve insulin levels in children with type 1 diabetes

...ne marrow from one animal and infusing it into its identical sibling without using chemotherapy or radiation therapy. And in the lab, scientists have been able to coax stem cells isolated from cord blood into making insulin. The man asked UF researchers whether giving a patient his or her own cord blood could ...

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(Date:12/15/2014)... 2014 Research and Markets ( ... "Global Facial Recognition Market 2015-2019" report ... http://photos.prnewswire.com/prnh/20130307/600769 Facial recognition is a ... recognition system measures the overall facial feature of ... and the distance between eyes. Facial recognition is ...
(Date:12/11/2014)... Dec. 10, 2014  That blood pressure plays a role ... Hypertension – the medical term for high blood pressure – ... and the inflatable cuff that,s used in measuring blood pressure ... there,s nothing new about hypertension, its triggers and its effects. ... the condition and the best ways to treat it. ...
Breaking Biology News(10 mins):Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4
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