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Tag: dna

Why do identical twins have different fingerprints?

In the late 1800s, doctors and scientists began gathering evidence that the pattern of ridges on a person’s fingers is not only unique to them, but also stays the same throughout their life, making fingerprints useful for identification. It wasn’t long before fingerprints were being used to catch criminals and they remain an important forensic tool today.

The likelihood of two people sharing identical fingerprints by chance is estimated to be less than one in 64 billion. Based on those odds, researchers have calculated that it would take more than a million years for two people with identical fingerprints to appear by chance in Scotland Yard’s fingerprint database.

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Top 10 Fastest Growing Technologies in Last 5 Years – IndianWeb2.com

1. Computer systems based on Biological Models –

With a CAGR growth of 67.28% in number of patents filed from 2016 to 2020, Computer systems based on biological models (Patent Class – G06N 3 & Its Subclass) is the top fastest growing technology.

As per IFI, this technology refers to computing systems where the computation is based on biological models (brains, intelligence, consciousness, genetic reproduction) or is using physical material of biological origin (biomolecules, DNA, biological neurons, etc.) to perform the computation. The computation can be digital, analogue or chemical in nature.

According to IFI, many growing sub technologies are included within class G06N of Patents (Computer systems based on specific computational models) which is the top area in terms of new technology developments right now.
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Looking for Interstellar Monuments – Scientific American

By now I have reached an age at which my birthdays can be thought of as a countdown to the inescapable end. We live our life without knowing when that end will come. But acknowledging its inevitability encourages us to build monuments of our accomplishments that will outlast us. Of course, our DNA can give us that sort of longevity through our children. But we often wish to add meaning to the world we leave behind that goes beyond our genetic code.

Genesis 3:19 states: “By the sweat of your brow you will eat your food until you return to the ground, since from it you were taken; for dust you are and to dust you will return.”

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Our Brains Break DNA in Order to Learn More Quickly

An interesting 2015 discovery sheds some light on memory issues:

The urgency to remember a dangerous experience requires the brain to make a series of potentially dangerous moves: Neurons and other brain cells snap open their DNA in numerous locations — more than previously realized, according to a new study — to provide quick access to genetic instructions for the mechanisms of memory storage.

David Orenstein, “Memory-making involves extensive DNA breaking” at MIT News (July 14, 2021) The paper is open access.

Jordana Cepelowicz explains an “unsettling” discovery made by Li-Huei Tsai’s team at MIT’s Picower Institute for Learning and Memory:

… to express learning and memory genes more quickly, brain cells snap their DNA into pieces at many key points, and then rebuild their fractured genome later…

The discovery is all the more surprising because DNA double-strand breaks, in which both rails of the helical ladder get cut at the same position along the genome, are a particularly dangerous kind of genetic damage associated with cancer, neurodegeneration and aging.

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Potential role of 'junk DNA' sequence in aging, cancer

The human body is essentially made up of trillions of living cells. It ages as its cells age, which happens when those cells eventually stop replicating and dividing. Scientists have long known that genes influence how cells age and how long humans live, but how that works exactly remains unclear. Findings from a new study led by researchers at Washington State University have solved a small piece of that puzzle, bringing scientists one step closer to solving the mystery of aging.

A research team headed by Jiyue Zhu, a professor in the College of Pharmacy and Pharmaceutical Sciences, recently identified a DNA region known as VNTR2-1 that appears to drive the activity of the telomerase gene, which has been shown to prevent aging in certain types of cells.

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Scientists detect signatures of life remotely

It could be a milestone on the path to detecting life on other planets: Scientists under the leadership of the University of Bern and of the National Centre of Competence in Research (NCCR) PlanetS detect a key molecular property of all living organisms from a helicopter flying several kilometers above ground. The measurement technology could also open up opportunities for remote sensing of the Earth.

Left hands and right hands are almost perfect mirror images of each other. But whatever way they are twisted and turned, they cannot be superimposed onto each other. This is why the left glove simply won’t fit the right hand as well as it fits the left.

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Biologists construct a 'periodic table' for cell nuclei

One hundred fifty years ago, Dmitri Mendeleev created the periodic table, a system for classifying atoms based on the properties of their nuclei. This week, a team of biologists studying the tree of life has unveiled a new classification system for cell nuclei and discovered a method for transmuting one type of cell nucleus into another.

The study, which appears this week in the journal Science, emerged from several once-separate efforts. One of these centered on the DNA Zoo, an international consortium spanning dozens of institutions including Baylor College of Medicine, the National Science Foundation-supported Center for Theoretical Biological Physics (CTBP) at Rice University, the University of Western Australia and SeaWorld.

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AI and the Selfish Gene

Epigenetics theories of Larmarck applied to AI and predictive behaviour in humans. Evolution does not serve individuals but genes propagation (Dawkins ‘selfish genes’).

Use personal data as DNA that is transfered from individual to individual in a world where individuals are just the ‘interfaces’ for genes to learn and spread across the world.

Google´s The Selfish Ledger:

https://www.youtube.com/watch?v=QDVVo14A_fo

Evolution is about getting our genes to the next generation, It has no investment in our happiness, or even in the long term survival of our species.

See also The Selfish Gene.

For more information about epigenetics its also interesting latest study from D.Chopra:… Read more...