Category Archives: Biology

Human Y and X chromosomes

The Y chromosome has the least amount of genes in all the human genome. With a 30% difference between humans and chimpanzees, the Y chromosome is one of the fastest evolving parts of the human genome. To date, over 200 … Continue reading

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Visualising the genome: researchers create first 3D structures of active DNA

For the first time, scientists have been able to model the physical structure of mammalian genomes from individual cells, giving us a unique 3D perspective on how DNA packages itself inside our cells. Through the new technique, scientists can see how … Continue reading

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Genome Editing with CRISPR-Cas9

This animation depicts the CRISPR-Cas9 method for genome editing – a powerful new technology with many applications in biomedical research, including the potential to treat human genetic disease. Feng Zhang, a leader in the development of this technology, is a … Continue reading

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Skeleton Typogram

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Very creative skeleton typogram by Aaron Kuehn

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The True Story of a Man Who Survived Without Any Food for 382 Days

Most people can survive without food for at least a few weeks, maybe a bit longer. Eventually, however, starvation kills. Yet the limits on how long people can go without eating are complicated; without water people are unlikely to last a … Continue reading

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Embryo in the eye of a needle

Embryo in needle’s eye, by Yorkos Nikas

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Gut bacteria could be affecting the body’s response to a new type of cancer treatment

Cancer immunotherapy – treatments that harness the body’s immune system to fight cancer – has been gaining traction in recent years as a new approach to treating the disease. But one of its major drawbacks is its variability: for some … Continue reading

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Ruptured venule under the scanning electron microscope

Magnification x2300, by Steve Gschmeissner

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The microscopical beauty of our kidneys

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ATP tattoo

ATP hummingbird moths Tattoo by Jessa Huebing-Reitinger Adenosine Triphosphate (ATP) is an energy-bearing molecule found in all living cells. Formation of nucleic acids, transmission of nerve impulses, muscle contraction, and many other energy-consuming reactions of metabolism are made possible by … Continue reading

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Electron micrograph of blood

Mindblowing electron micrograph of blood (single erythrocytes) inside a micro needle 🙂 We think many people would like blood a lot more if we could see it like this! Image by Science photo library via ILA

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Scientists create first stable semisynthetic organism

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Life’s genetic code has only ever contained four natural bases. These bases pair up to form two “base pairs”—the rungs of the DNA ladder—and they have simply been rearranged to create bacteria and butterflies, penguins and people. Four bases make … Continue reading

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We now know bacteria can communicate electrically, and we should be worried

We already have a lot to worry about when it comes to bacteria, as more and more strains becoming resistant to our dwindling arsenal of antibiotics. Last year, a woman in the US was killed by a superbug resistant to … Continue reading

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Mutation that triggered multicellular life altered protein flexibility

Just as a boat can be driven off course by a log in its path, a single, random mutation can send life in a new direction. That scenario, says University of Oregon biochemist Ken Prehoda, illustrates how a random mutation … Continue reading

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See the first color images produced by an electron microscope

Imagine spending your whole life seeing the world in black and white, and then seeing a vase of roses in full color for the first time. That’s kind of what it was like for the scientists who have taken the … Continue reading

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Consciousness Is the Key to Understanding Reality

In order to understand the true nature of reality, science must first recognize the importance of consciousness, says Dr. Robert Lanza, a stem-cell biologist whose work has earned him high acclaim. He also sees a greater role for consciousness in … Continue reading

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How do trees communicate?

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Penn software helps to identify course of cancer metastasis, tumor ‘evolution’

Individual cells within a tumor are not all the same. This may sound like a modern medical truism, but it wasn’t very long ago that oncologists assumed that taking a single biopsy from a patient’s tumor would be an accurate … Continue reading

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Has DNA met its match as a forensic tool?

U.S. Energy Department scientists say a new method of analyzing genetic mutations in proteins in human hair could lead to the first forensic technique other than DNA profiling that could reliably match biological evidence to a single person with scientific … Continue reading

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DNA confirms cause of 1665 London’s Great Plague

DNA testing has for the first time confirmed the identity of the bacteria behind London’s Great Plague. The plague of 1665-1666 was the last major outbreak of bubonic plague in Britain, killing nearly a quarter of London’s population.It’s taken a … Continue reading

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