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Tag: "fingerprints" at biology news

UF Researchers Map Bacterial Proteins That Cause Tooth Loss

...identifiers as unique to proteins as the whorls of fingerprints are to people. The spectrometry measurements were fed into a computer database to create a computational model of the P. gingivalis proteome, resulting in a surprising find. “Some of the proteins we previously thought were important when they were ...

Study reveals new technique for fingerprinting environmental samples

... made to biomedical sciences. "These DNA sequence fingerprints can be used to provide highly accurate assessments...e of Science, which supported the research. "These fingerprints can be used to reveal environments under stress as well as signal progress in remediating contaminat...

Finding hidden invaders in a Hawaiian rain forest

...t of Global Ecology, explained: "We found chemical fingerprints from the plant leaves and used them to tell which ...raft, and corroborated the data on the ground. The fingerprints showed where the native dominant tree 'ohia' (Metrosideros polymorpha) has been taken over by the in...

Tiny avalanche photodiodes target bioterrorism agents

... system capable of identifying the unique spectral fingerprints of a biological agent attack. The Northwestern team, led by center director Manijeh Razeghi, became the first to demonstrate 280 nanometer APDs. These devices, based on aluminum gallium nitride (AlGaN) compound semiconductors, have a photocurrent ga...

Researchers quantify more noise in gene expression

Human identical twins have different fingerprints and march to the beat of subtly different phenotypes, an indication of heterogeneity which led bioengineering researchers at the University of California, San Diego (UCSD) to devised computer algorithms that identify the underlying sources of variati...

New DNA 'fingerprinting' technique separates hemp from marijuana

...nt cultivars of hemp and one of marijuana, the DNA fingerprints of all the cultivars were distinct and nonoverlapping. Weiblen and Shannon L. Datwyler, a postdoctoral associate who is now on the faculty of California State University, Sacramento, found that the AFLP (amplified fragment length polymorphism) techni...

Volcanic eruptions, ancient global warming linked

...the peak of the volcanic eruptions. Using chemical fingerprints and identical ages, they were able to positively match ash layers in east Greenland with those in marine sediments in the Atlantic Ocean. "We think the first volcanic eruptions began about 61 million years ago and then it took another 5 million ye...

'Ancestral eve' was mother of all tooth decay

...n his analysis of the bacterium, Caufield used DNA fingerprints and other biomarkers that scientists have also employed to trace human evolution back to a single common African ancestor, known as "ancestral Eve." "As humans migrated around the world and evolved into the different races and ethnicities we kno...

The origin of the brain lies in a worm

...s give rise to neuron types with similar molecular fingerprints and these neurons also go on to form the same neural structures in annelid worm and vertebrate." "Such a complex arrangement caould not have been invented twice throughout evolution, it must be the same system," adds Gáspár Jékely, a researcher fr...

Genetic fingerprints identify brain tumors' origins

Genetic fingerprints that reveal where a brain cell came from remain di...f gene expression. These patterns provided genetic fingerprints or bar codes for the location of PAs, as well as for another glial cell tumor called an ependymoma. ...

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