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Archive for the ‘genetics’ category: Page 210

Dec 30, 2020

Octopus And Squid Evolution Is Officially Stranger Than We Could Have Ever Imagined

Posted by in categories: biotech/medical, evolution, genetics

I have to admit, they really sound “alien-like” if you ask me. 😃


Just when we thought octopuses couldn’t be any weirder, it turns out that they and their cephalopod brethren evolve differently from nearly every other organism on the planet.

In a surprising twist, in April 2017 scientists discovered that octopuses, along with some squid and cuttlefish species, routinely edit their RNA (ribonucleic acid) sequences to adapt to their environment.

Continue reading “Octopus And Squid Evolution Is Officially Stranger Than We Could Have Ever Imagined” »

Dec 30, 2020

Aerolysin nanopores decode digital information stored in tailored macromolecular analytes

Posted by in categories: bioengineering, biological, chemistry, computing, encryption, genetics, information science

Digital data storage is a growing need for our society and finding alternative solutions than those based on silicon or magnetic tapes is a challenge in the era of “big data.” The recent development of polymers that can store information at the molecular level has opened up new opportunities for ultrahigh density data storage, long-term archival, anticounterfeiting systems, and molecular cryptography. However, synthetic informational polymers are so far only deciphered by tandem mass spectrometry. In comparison, nanopore technology can be faster, cheaper, nondestructive and provide detection at the single-molecule level; moreover, it can be massively parallelized and miniaturized in portable devices. Here, we demonstrate the ability of engineered aerolysin nanopores to accurately read, with single-bit resolution, the digital information encoded in tailored informational polymers alone and in mixed samples, without compromising information density. These findings open promising possibilities to develop writing-reading technologies to process digital data using a biological-inspired platform.

DNA has evolved to store genetic information in living systems; therefore, it was naturally proposed to be similarly used as a support for data storage (1–3), given its high-information density and long-term storage with respect to existing technologies based on silicon and magnetic tapes. Alternatively, synthetic informational polymers have also been described (5–9) as a promising approach allowing digital storage. In these polymers, information is stored in a controlled monomer sequence, a strategy that is also used by nature in genetic material. In both cases, single-molecule data writing is achieved mainly by stepwise chemical synthesis (3, 10, 11), although enzymatic approaches have also been reported (12). While most of the progress in this area has been made with DNA, which was an obvious starting choice, the molecular structure of DNA is set by biological function, and therefore, there is little space for optimization and innovation.

Dec 28, 2020

The Timescape of Homo Sapiens: Insights on Our Time as a Species

Posted by in categories: futurism, genetics

You are an apogee of Earthly Nature encompassing numerous generations of humans as well as preceded non-human terrestrial life, sitting atop the tree of life… and so is everyone else who lives today. We all can be regarded as archetypes for future generations as well, or perhaps a “developing pattern,” if you intend to live indefinitely long. At any rate, genetically and anthropologically speaking, we all are one humongous extended family. #Timescape #HomoSapiens #ExponentialPedigree


This demographic research provides a host of quantifiable properties of the human species as a whole for further visualizing the data via certain graphs and diagrams. 5 trillion subjective years would constitute the ‘Timescape’ of Homo sapiens up to the p.

Dec 24, 2020

How Worried Should You Be About the New Strain of COVID-19?

Posted by in categories: biotech/medical, genetics

Follow the links in the story for sources, the text is in red. A new strain of COVID-19 is causing a wave of new lockdowns in London and travel restrictions for those coming from the U.K. because some are worried that this may be an even more contagious version of the coronavirus. Experts say it’s definitely something to watch out for, but it’s not clear whether or not this variant is actually more transmissible—and there’s no reason to think the current COVID-19 vaccines won’t be effective against it. So what exactly is different about this new strain of COVID-19? Well, this variant (also called B. 1. 1. 7.) has a few mutations, 17 to be exact. Not all of them are concerning, but a few are. The mutations that have experts a little on edge have to do with genes that encode the virus’s spike protein, which is located on the surface of the virus and is the piece of the virus that helps it actually bind to human cells. (That’s the first step in becoming infected.) One of these mutations (called N501Y) may make it easier for the spike protein to bind to the receptors on our cells, Science explains. Another mutation (called 69-70del) affects the number of amino acids (the building blocks that make up a protein) in the spike protein, and variants with this mutation have been previously identified in some immunocompromised people whose bodies were unable to muster the necessary immune response to protect them from the virus.


It’s causing new lockdowns and travel restrictions.

Dec 24, 2020

Research team develops software that cuts time, cost from gene sequencing

Posted by in categories: biotech/medical, genetics

A team of Johns Hopkins University researchers has developed a new software that could revolutionize how DNA is sequenced, making it far faster and less expensive to map anything from yeast genomes to cancer genes.

The , detailed in a paper published in Nature Biotechnology, can be used with portable sequencing devices to accelerate the ability to conduct genetic tests and deliver diagnoses outside of labs. The new technology targets, collects and sequences without sample preparation and without having to map surrounding genetic material like standard methods require.

“I think this will forever change how DNA sequencing is done,” said Michael C. Schatz, a Bloomberg Distinguished Associate Professor of Computer Science and Biology and senior author of the paper.

Dec 24, 2020

AI-Designed Serotonin Sensor May Help Scientists Study Sleep and Mental Health

Posted by in categories: bioengineering, biotech/medical, chemistry, genetics, health, robotics/AI

Summary: Artificial intelligence technology redesigned a bacterial protein that helps researchers track serotonin in the brain in real-time.

Source: NIH

Serotonin is a neurochemical that plays a critical role in the way the brain controls our thoughts and feelings. For example, many antidepressants are designed to alter serotonin signals sent between neurons.

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Dec 23, 2020

Florida to Release 750 Million GMO Mosquitoes in 2021

Posted by in category: genetics

Video on the gene edited mosquitos to be released in Florida.


The U.S. EPA gave the green light to release millions of genetically modified mosquitoes in the Florida Keys in 2021 — here’s what we know.

Dec 21, 2020

Biologists have Found a Way to Regenerate Neurons in Mice with Parkinson’s Using CRISPR Gene Editing

Posted by in categories: bioengineering, biotech/medical, genetics, neuroscience

Using CRISPR to alter the genetics of astrocytes in mice, researchers hope they’ve discovered how to regenerate neurons in patients with Parkinsons disease.

Dec 21, 2020

CRISPR/Cas9 Used to Bring LRRK2 Mutation to Possible Monkey Disease Model

Posted by in categories: bioengineering, biotech/medical, genetics

Using CRISPR/Cas9 gene editing tools, researchers introduced a common Parkinson’s disease mutation into stems cells of the marmoset monkey for a first time, paving the way toward a primate model of this disease.

Dec 21, 2020

Reversing aging through cellular reprogramming!?

Posted by in categories: education, genetics, life extension

Nice lecture with both technical info and analogy.


Latest study from David Sinclair’s lab have used cellular reprogramming to restore vision in aged mice & more! Suggests reversing aging *may* be possible.

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