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Bio-computer combines DNA memory and cellular logic gates
MIT scientists have created genetic circuits in bacterial cells that not only perform logic functions, but also remember the results, which are encoded in the cell’s DNA and passed on for dozens of...
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Gene expression altered with meditation
Previous studies have shown that meditation can trigger changes in the brain and body but the biological mechanism for these effects has remained a mystery. Now, in the...
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Sperm-like biological robot displays “remarkable” self-organization
Powered by cultured heart cells, tiny, self-organizing bio-hybrid machines that swim like sperm have been created by scientists at the University of Illinois. A report on the synthetic self-propelled...
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Genetics play no role in disease risk, claims controversial new study
Genes have been implicated in influencing everything from our sexual orientation to our risk of cancer, but a new paper published in the Journal of the Royal Society Interfaceasserts that the...
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Mug shots from DNA possible, say scientists
DNA can already tell us the sex and ancestry of unknown individuals, but now an international team of researchers is beginning to connect genetics with facial features, degrees of femininity, and...
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Algae turn quantum coherence on and off
A team of researchers has discovered how algae that survive in very low levels of light are able to switch on-and-off a quantum phenomenon known as coherence. The function of coherence in the algae...
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Study questions whether lab-grown cells are a faithful model for human disease
Studies of human diseases such as cancer rely on the use of laboratory-grown cell cultures that have often been grown for decades. Now, new research indicates that these cell cultures may not be a...
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“Quantum jitter” mechanism behind the random mutations that drive evolution...
The molecular machines that copy DNA in a living cell are fast and accurate at pairing up the correct bases – G with C and A with T – into each new double helix. They work by recognizing the shape of...
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Male genetic diversity strangled by wealth and power
Genetic researchers have discovered an extremely dramatic decline in male genetic diversity between 4,000 and 8,000 years ago, while in contrast, female genetic diversity was on the rise. The work, by...
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Primordial DNA could have appeared spontaneously, suggests new study
The self-organization properties of DNA-like molecular fragments four billion years ago may have guided their own growth into repeating chemical chains long enough to act as a basis for primitive...
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