Tag: "bases" at biology news

Biofuel economics

... the fact that most studies rarely employ the same bases for economic evaluations. Differences in assumed plant size, biomass costs, method of project financing, and even the year in which the analyses are performed can skew comparisons. Although the costs of production are comparable for grain ethanol a...

Biologists at Tufts University discover 1 reason why chromosomes break, often leading to cancer

...h region, where the DNA was composed mostly of the bases adenine (A) and thymine (T), rather than the other bases cytosine (C) or guanine (G). Freudenreich and Zhang found the longer the AT-repeat, the more the rep...

New grants bolster efforts to generate faster and cheaper tools for DNA sequencing

...eter) that may be able to recognize individual DNA bases by their electrical or ionic signals to achieve hi...ll be built into those channels to detect each DNA bases specific electrical signal. H. Kumar Wickramasinghe, Ph.D., University of California, Irvine $2...

Unraveling the physics of DNA's double helix

..."mechanical fingerprint" of the attraction between bases within DNA strands. The bonds within the molecules...helix," Marszalek explained. With no bonds between bases to break, the thymine chains' showed little resistance to extension and no plateau. Based on the k...

'Virtual' mouse brains now available online

... What remains visible, seemingly floating over the bases of the animals' skulls, are two color-coded brain structures -- the ventricles and hippocampus -- showing different volumes resulting from specific genetic differences. Under funding from the National Center for Research Resources, the new imaging...

First all-African produced genetically engineered maize is resistant to maize streak virus

...984 and found to contain a genome of only 2700 DNA bases in a circle of single-stranded DNA. When it infects susceptible plants, they produce deformed cobs and are often severely dwarfed. As the name of the virus suggests, the leaves are marked with parallel, yellow-white streaks. The timing of infec...

Military bases can benefit by addressing sprawl issues and biodiversity

...partments program to provide land buffers near its bases has been effective in relieving military training ...ups involved in buffering projects at six military bases in the United States. These bases include Eglin Air Force Base and Naval Air Station Whiting Field (...

Exploring the dark matter of the genome

... are 2 kilobases long" -- a kilobase (Kb) is 1,000 bases -- "and some that are 10 kilobases long. Contiguou...ng up to hundreds of thousands or even millions of bases in length. In these "seas" of satellite DNA there are "islands" of moderate-length repeats totaling ...

UVa-led team uncovers important secret in gene replication

... turns out that it is not just the sequence of the bases (building blocks) in the DNA, but also how loosely...lement. There is nothing in the DNA sequence of bases that sets up the boundary areas between active and inactive portions, but clearly the chromosome is ...

University of Washington researchers play leading role in major study of human genome function

... these unfolded regions within the billions of DNA bases on the genome. First, they used an inexpensive enzyme, called DNaseI, as a molecular bloodhound. When it is injected into a living cell, the enzyme seeks out regions of unfolded chromatin that correspond to functional elements. By mapping where the D...

Researchers track how spores break out of dormant state

... made in understanding the biochemical and genetic bases of the spore germination process, it is still unclear how a spore breaks out of its dormant state. But a new in vitro study of single germinating Bacillus atrophaeus spores details how the spore coat structures break down, and it shows with unprece...

Cataloging the structural variations in human genetics

...usually have focused on the individual "letters or bases of a DNA sequence. But the genetic differences bet...the human population, says Eichler. "In fact, more bases are involved in structural changes in the genome than are involved in single-base-pair changes. I...

The sound of proteins

... The duo focus on codons sets of three adjacent bases that code for particular amino acids. They decided to include four different note durations with codons that appear more frequently transcribed into longer notes than those which appear less often. Individual amino acids are expressed as chords, in w...

Biology in the 21st century

...007 attendees about the theoretical and conceptual bases of biology in the 21st century. "Research in this area is aimed at developing a comprehensive understanding of living systems," Collins said. "This is important in a world in which, for example, climate change is affecting our entire planet. What h...

Tracking genes for self-pollination in arabidopsis

...r, i.e., the DNA sequence contains a few different bases here and there. The degree to which self-incompatibility is turned on in the plant seems to correlate with these variations. PUB8-mediated pseudo self-compatibility might have been a transitional phase in the evolutionary switch from self-incompatibi...

An electroacoustic path to custom-made gene chips

... ejectors, depressions in which small drops of DNA bases -- the genetic chemical letters A, T, C, and G -- sit on top of thin membranes that can be given electronic snaps by an activator. The snap is directional and extremely precise, so that droplets emerge at exactly the same predetermined angle from ...

Stretching DNA to the limit

...ht induces the crosslinking of the constituent DNA bases within the polynucleotide chains, as well as cause...ic DNA to figure out the extent to which different bases are affected by UV light. They conclude that the changes in the force profile of viral DNA exposed t...

Carnegie Mellon University scientists identify genes activated during learning and memory

...cription factors, binding to a cluster of chemical bases represented in the genetic code as letters. Once bound, they regulate genes that, in turn, dictate the assembly of other proteins that alter a neuron during memory and learning. The Carnegie Mellon team created a step-by-step set of instructions f...

UT Metroplex institutions to collaborate on biomedical research

...outcomes. "Genetic, molecular and neurological bases of sexual discrimination in Drosophila" Dr. Pawel Michalak, assistant professor of biology at UTA, and Dr. Dean Smith, associate professor of pharmacology at UT Southwestern. This project focuses on understanding how genes influence sexuality and ma...

Research project tackles 'regeneration' gap

...ce cells than others. Yet we do not understand the bases for these differences." The Regeneration Project will shortly begin establishing its think tank of international scientists, Steindler said....

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(Date:8/28/2014)... A unique method for delivering compounds that ... HIV and AIDS may be possible, thanks ... Agricultural Sciences., A semi-soft vaginal suppository made ... loaded with the antiviral drug Tenofovir provides ... against the spread of sexually transmitted infections ...
(Date:8/28/2014)... new roads will be built worldwide by 2050. Many ... where they bring an influx of destructive loggers, hunters ... has created a ,global roadmap, for prioritising road building ... demands of development and environmental protection. , The map ... natural importance of ecosystems and a ,road-benefits, layer that ...
(Date:8/28/2014)... more action is needed to ensure safeguards are in ... in PLOS ONE , researchers from Monash University, ... - combining results from different studies - to look ... areas, to determine whether they actually protect biodiversity. ... protecting an area from human exploitation made common sense, ...
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