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Tag: "base" at biology news

Uncovering DNA's 'sweet' secret

... any other bonds. "In homo-DNA, the Watson-Crick base pairing rules are changed," Eglisaid. "For example..." But despite homo-DNA's apparent versatility in base pairing and its thermodynamic stability, other features of the molecule's architecture probably prec...

NHGRI aims to make DNA sequencing faster, more cost effective

...ill costs around $10 million to sequence 3 billion base pairs ?the amount of DNA found in the genomes of h...cle of DNA polymerase to capture just a single DNA base on an immobilized primer/template. A fluorescence scanner will be used to scan and identify hundreds...

Robotic whiskers can sense three-dimensional environment

...that the bending moment, or torque, at the whisker base can be used to generate three-dimensional spatial ... move actively in one dimension, rotating at their base in a plane roughly parallel to the ground. When the whiskers hit an object, they can be deflected ba...

An advanced genetic diagnostic method for multiple myeloma

...any), is oriented towards the study of the genetic base of this cancer, and the posterior development of cytogenetic diagnostic strategies for the detection of alterations with prognostic value. For this purpose, he has analyzed, by means of statistical methods, the cytogenetic changes in a group of pati...

Genetic study of Neanderthal DNA reveals early split between humans and Neanderthals

...cimen from Vindija, Croatia. They recovered 65,250 base pairs of the Neanderthal's 3 billion total base pairs and utilized traditional sequencing technologies used for the Human Genome Project as well as ...

Boston University biomedical engineers win major grant for pursuit of the '$1,000 Genome'

... these "nanopores" using an electric current. Each base is identified by a florescent marker attached to i...DNA." According to NIH, sequencing the 3 billion base pairs on a human genome using current technology costs about $10 million. Reducing the cost to $1,00...

Researchers barcode DNA of Venice museum's vast fungi collection

...s. The length of the region varies from around 450 base pairs to 900 base pairs, depending upon the taxa from which it is sampled. "If you're going to cross-compare specie...

Otherworldly bacteria discovered two miles down

...om the Sun, with photosynthetic plants forming the base of the food web. But in dark places where sunlight doesn't reach, life has to depend on other energy sources. Other communities of "chemoautotrophs"--a word chained together from Greek roots meaning "chemical self-nourishment"--have been found in exo...

A giant among minnows: Giant danio can keep growing

...siological research while drawing on the knowledge base of the zebrafish genome. The researchers saw the giant danio as the physiological model and began a series of experiments on differences in muscle growth between the fish. In this two-phased experiment, they discovered that the giant danio can keep...

Radiologists attempt to solve mystery of Tut's demise

...mmediately underneath the bone defect in the skull base through which the spinal cord emerges," Dr. Selim said. Dr. Selim's team did not escape the so-called curse that is said to plague anyone who disrupts the remains of the boy king. "While performing the CT scan of King Tut, we had several stran...

Halving daily cigarette quota has no health benefit

...d by smoking is to quit, say the authors. They base their findings on more than 51,000 men and women, all of whom were aged between 20 and 34 at the start of the study. Participants were initially assessed for cardiovascular risk factors, and then screened again twice at an interval of three to 10 ...

Protein shown to rally biological clock

... the suprachiasmatic nucleus (SCN), located at the base of the brain right across the optic nerve, keep 24-hour time and are normally highly synchronized. The SCN is composed of 10,000 neurons on one side of the hypothalamus, and 10,000 on the other. Together these neurons are intrinsic clocks in commu...

New finding points way to foiling anthrax's tricks

...genic forms that produce more than one siderophore base them on the same molecular structure to which siderocalin binds. Anthrax is a potential bioweapon because it is nearly always fatal when inhaled. Its long-lived spores grow rapidly in the lungs, leading to breathing problems and shock within days....

Scientists solve 30-year-old mystery of mutant mouse's kidney woes

...he gene from other normal mice, and found a single base pair had changed." The change swaps the amino acid serine for the amino acid leucine at a key position in the protein. Serine can undergo phosphorylation, a form of chemical modification frequently used in biological processes; leucine cannot. This...

Master planners in brain may coordinate other areas' roles in cognitive tasks

...e of the top of the brain; the opercula are at the base of the brain in both the left and right hemispheres. "For years, when you looked at maps of what different parts of the brain do, the opercula have often been blank," notes senior author Steven Petersen, Ph.D., James S. McDonnell Professor of Cogni...

Iowa State researchers improving plastics made from corn and soy proteins

...lastics while allowing the researchers to use less base material to make the plastics. Grewell said the potential applications for plastics from crop proteins include disposable wraps for hay bales, pots for plants and packaging for the food industry. Grewell, Kessler, Howard Van Auken, a professor...

African wetland managers armed with new technology

...on user requirements, GlobWetland products include base maps, land use-land cover (LULC) maps and change detection maps ?with historical Earth Observation (EO) satellite images being compared with current acquisitions to see what changes have occurred during the last ten years or more. Integrating the E...

Thermal imaging shatters arousal gender gap myth

... Bean to Canadian tourism travelogues to provide a base of control data. During the arousal experiment, the male and female subjects watched separate sexually explicit films procured from the Kinsey Institute and determined to be sexually arousing to specific genders. They watched the images through speci...

Large-scale genomics project will hunt genes behind common childhood diseases

...omprehensive pediatric networks, we have a sizable base of patients and families from which to collect dat...e medical information, to strengthen the project's base of information. "Our sample size will be large enough to provide great statistical power to our res...

Record air pollution above the Arctic

... and clear above the French-German AWIPEV-Research base in Ny-Ålesund at the western coast of Svalbard. Ho...hest measured since the foundation of the research base in 1989. A specific weather condition has caused the record high air pollution. Large amounts of ae...

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