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Latest DNA Stories

2014-01-03 15:36:17

A review of the computer simulations of nuclear DNA DNA carries out its activities "diluted" in the cell nucleus. In this state it synthesizes proteins and, even though it looks like a messy tangle of thread, in actual fact its structure is governed by precise rules that are important for it to carry out its functions. Biologists have studied DNA by observing it experimentally with a variety of techniques, which have only recently been supplemented by research in silico, that is to say,...

Developing DNA Barcode Libraries From Museum Collections
2013-12-30 13:26:26

Pensoft Publishers The ability to sequence the DNA of plants and animals has revolutionized many areas of biology, but the unstable character of DNA poses difficulties for sequencing specimens in museum collection over time. In an attempt to answer these issues, a recent study of 31 target spider species from the Naturalis Biodiversity Center in Leiden, discovers that both time and body size are significant factors in determining which specimens can produce DNA barcode sequences. The study...

DNA Barcodes Help Identify Palms
2013-12-30 13:01:17

Pensoft Publishers Reliable and cost-effective species recognition is the dream of many scientists, and has important applications. While the use of morphological features is often uncertain, and can lead to misidentification, species identification based on the composition of short DNA sequences -the so-called "DNA barcodes"- has proven to be the safest way to reach this goal, both in animals and in many groups of plants. Palms belonging to the genus Phoenix, including the...

2013-12-20 10:32:36

As part of an international research project, a team of researchers has developed a DNA clamp that can detect mutations at the DNA level with greater efficiency than methods currently in use. Their work could facilitate rapid screening of those diseases that have a genetic basis, such as cancer, and provide new tools for more advanced nanotechnology. The results of this research is published this month in the journal ACS Nano. Toward a new generation of screening tests An increasing...

2013-12-18 11:42:28

Researchers have created a new type of molecular motor made of DNA and demonstrated its potential by using it to transport a nanoparticle along the length of a carbon nanotube. The design was inspired by natural biological motors that have evolved to perform specific tasks critical to the function of cells, said Jong Hyun Choi, a Purdue University assistant professor of mechanical engineering. Whereas biological motors are made of protein, researchers are trying to create synthetic...

2013-12-16 12:00:42

Findings may be useful in design of future drugs and catalysts The theory of evolution suggests that present-day organisms evolved from earlier life forms. At the molecular level, evolution reshaped some of the enzymes that help complete chemical processes—such as converting food into energy—in humans and all other life forms. Now a University of Iowa researcher and his colleagues describe the evolution of various forms of the enzyme “dihydrofolate reductase” as it occurred...

2013-12-13 23:19:31

Lintech Components has completed the qualification process to become a certified Signature DNA Marker. Ronkonkoma, NY (PRWEB) December 13, 2013 Lintech Components is pleased to announce it has completed the qualification process to become a certified Signature DNA Marker from Applied DNA Sciences— (ADNAS), a company that has developed botanical DNA-based security and authenticity solutions to protect products, brands, and other property from counterfeiting in both the United States and...

Secret Code Discovered In Human DNA
2013-12-13 05:26:03

[ Watch the Video: Human DNA Has Been Hiding A Secret ] redOrbit Staff & Wire Reports - Your Universe Online A newly discovered ‘second code’ hiding within our DNA is casting new light on how changes to DNA impact health and disease, according to a study published Friday in the journal Science. The new code is changing the way scientists read and interpret genetic instructions and mutations. Since the genetic code was deciphered in the 1960s, scientists have assumed it...

2013-12-12 23:31:00

Get DNA Testing from the Comfort of Home with Natus DNA Testing Kits. (PRWEB) December 12, 2013 Natus, a prenatal and paternity DNA testing agency, announces the release of their home DNA testing kit. This kit allows clients to test their DNA from the comfort of their own home – without visiting a laboratory. Natus provides at-home DNA testing for expectant mothers, individuals looking for maternal ancestry, infidelity testing kits and familial testing. Kits are ordered online through...


Latest DNA Reference Libraries

Brief Introduction To DNA Probes
2014-01-12 00:00:00

DNA probes help scientists to detect a specific gene in a long DNA sequence. According to Dr. Michael A. Pfaller, DNA probes are “single-stranded pieces of nucleic acid, labeled with a specific tracer (isotope, enzyme, or chromophore), that will hydrogen bond (hybridize) with complementary single-stranded pieces of DNA (or RNA) under the appropriate conditions of pH, temperature, and iconic strength.” The Foundation for Genomics and Population Health website has a helpful video about...

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2011-04-14 15:10:21

Bacillus subtilis, also known as hay bacillus or grass bacillus, is a Gram-positive, catalase-positive bacterium commonly found in soil. It is rod-shaped and a member of the genus Bacillus. It also has the ability to form a tough, protective endospore, allowing the organism to tolerate extreme environmental conditions. B. subtilis has historically been classified as an obligate aerobe, though recent research has proven this to not be strictly correct. It is not a human pathogen although...

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Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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