DNA
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Researchers have found that the “mother” of stem cells, known as totipotent stem cells, have a much slower rate of DNA replication, which helps improve their differentiation efficiency. This could lead to major breakthrough for regenerative medicine.
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As with most things, nature’s data storage system, DNA, far surpasses anything we’ve created. Now, researchers have doubled its already incredible storage capacity by adding extra letters to its “alphabet,” and developed a new way to read it back.
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Biologists have discovered the largest bacterium ever found, with a single cell measuring a mammoth 2 cm long. Visible to the naked eye, this new species has bizarre characteristics that make it like a missing link in the evolution of complex cells.
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New research in old mice undergoing an increasingly demanding fitness regime has shown how exercise can lead to rejuvenated skeletal muscle, with the tissue showing characteristics of mice eight weeks younger.
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Genome sequencing can determine whether a patient’s illness is genetic, but results usually take weeks. A new ultra-rapid technique can sequence a person’s genome and diagnose genetic diseases in just a few hours, earning it a Guinness World Record.
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The DNA mutations that drive evolution are generally thought to be random, but a new study suggests otherwise. Comparing the genomes of plants grown in a lab, scientists found mutations are far less likely to occur in genes essential for survival.
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Researchers in Canada have developed a new tool that can let scientists examine proteins more closely, aiding study of disease and drug development. The team used DNA to create nanoantennas that fluoresce in response to different protein functions.
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Two new studies collected air samples from zoos and demonstrated the ability to identify a range of animals living there from their airborne DNA. This could eventually be used as a non-invasive way to track biodiversity.
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Scientists are already able to ascertain what species are present in aquatic environments, by analyzing the cast-off DNA which is present in the water. Now, for the first, a team has conducted an insect survey by analyzing DNA found in the air.
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Sleep is a crucial biological phase, but exactly why almost every organism needs it remains mysterious. Now a study has uncovered a new piece of the puzzle, finding that a protein involved in DNA repair signals the brain when it’s time to sleep.
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Aging affects everybody, so it’s easy to understand why so much scientific attention is focused on studying it. Scientists in Canada now claim to have found that telomeres play a different role in cellular aging than previously thought.
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Ordinarily, if you want to check if two plants of the same species come from genetically different populations, you have to analyze their DNA. A new study, however, has found that an analysis of their leaves is a much quicker and easier alternative.
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