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A Significant New Development In DNA Analysis Technology

The forensic examiners are working blind because they can't see the exact location which contains deposits of DNA

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A DNA double helix is seen in an undated artist's illustration released by the National Human Genome Research Institute. For the first time, U.S. scientists have successfully edited genes of human embryos. VOA
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Australian scientists have developed a novel test which can reveal the amount of DNA people shed, an advance that would help forensic examiners catch criminals.

The test, using a DNA staining dye, can help forensic examiners at crime scenes determine the last person who made contact with an item.

“We know that some people pass on more of their DNA because when they touch something more of their cells are left behind,” said Adrian Linacre, Professor and Chair of Forensic DNA Technology at Flinders University, Australia.

Forensic Examiners
Police forensics investigators work on London Bridge after an attack left 7 people dead and dozens injured in London, Britain, VOA

“They are called shedders but it’s very difficult at the moment to see who is a shedder,” he added.

The shedder status of a specific person of interest may be relevant in determining the likelihood of whether a major contributor in a mixed DNA profile was the last person to make contact with an item and is therefore linked to a crime.

The use of a DNA staining dye can visualise the presence of cellular material and allow real-time collection of the cellular material to a swab head.

The results are published in the journal Forensic Science International: Genetics.

Forensic Examiners
Scientists have found a way of mapping out human DNA.

Currently, the forensic examiners are working blind because they can’t see the exact location which contains deposits of DNA and therefore have to sample where they think DNA might be stored.

Also Read: DNA Testing to Bring Together Separated Families

“What we have developed is a simple test which can work out if an individual is a shedder in a matter of minutes. It tells us who has the better chance of passing on DNA,” Linacre said.

“The shedders test also showed men shed more than women do, and that thumbs leave the most accurate traces,” the researchers said. (IANS)

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Samsung Launches Galaxy S4 Tab

Samsung also announced several offers for those who want to buy the flagship tablet.

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Samsung India set to launch Galaxy Tab S4 this week for Rs 60,000. Flickr

Samsung on Thursday launched in India its flagship tablet, Galaxy Tab S4, a new two-in-one Android tablet that comes equipped with Samsung Dex and S Pen for Rs 57,900.

Galaxy Tab S4 sports narrower bezels to fit a 10.5-inch display with Super AMOLED technology, as well as a 16:10 screen ratio.

Powered by a 7,300mAh battery, Galaxy Tab S4 also comes with four speakers tuned by AKG and Dolby Atmos immersive sound technology.

 

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The redesigned S Pen offers an authentic handwriting experience – suitable for drawing, taking notes, and messaging.

 

“Paired with Samsung Dex and S Pen, Galaxy Tab S4 is designed for those who need something portable like a tablet yet capable like a PC,” Aditya Babbar, General Manager, Mobile Business, Samsung India, told reporters here.

Samsung DeX optimises the user experience for work situations and gives what they want from a PC experience — a big screen, a full-size keyboard and a mouse.

In Standalone mode, one can enjoy a PC-like interface even without a monitor or the “Book Cover” Keyboard, Samsung India said.

In Dual mode, users can connect the tablet to a bigger monitor with an HDMI adapter.

The redesigned S Pen offers an authentic handwriting experience – suitable for drawing, taking notes, and messaging.

galaxy samsung
Powered by a 7,300mAh battery, Galaxy Tab S4 also comes with four speakers tuned by AKG and Dolby Atmos immersive sound technology.

Galaxy Tab S4 will be available from Thursday onwards in black and grey colours on Samsung Online Shop and leading offline retail stores, the South Korean tech giant said, adding that it will also be available on Amazon from October 20 onwards.

Samsung also announced several offers for those who want to buy the flagship tablet.

Those with HDFC Bank credit cards will be able to avail an introductory offer that lets consumers get Rs 5,000 cashback on purchase of Galaxy Tab S4.

Also Read: Honor 8X Launches In India

Moreover, Galaxy Tab S4 customers on Jio 4G, would be entitled to get instant cashback of Rs 2,750 on recharging with Rs 198 or Rs 299 plan.

They would also get double data benefits on every recharge for the next four recharges, Samsung India said. (IANS)