Catégorie : Biologie

Est-il vrai qu’il y a plus de microbes que de cellules dans le corps humain ?

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Il est difficile de faire nos courses sans qu’il ne nous soit proposé des produits pour protéger notre microflore ! Notre corps hébergerait dix fois plus de bactéries que de cellules. Vraiment ? La microflore ou microbiote est l’ensemble des micro-organismes qui…

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Rain may have helped form the first cells, kick-starting life as we know it

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Billions of years of evolution have made modern cells incredibly complex. Inside cells are small compartments called organelles that perform specific functions essential for the cell’s survival and operation. For instance, the nucleus stores genetic material, and mitochondria produce energy.…

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Au cœur de la cellule, une protéine passe certains gènes sous silence

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Dans une étude qui met en lumière les mécanismes complexes de la régulation des gènes, des scientifiques de l’EPFL ont révélé qu’une protéine spécifique joue un rôle indispensable dans la désactivation de certains groupes de gènes en les ancrant dans…

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New aerospace and building materials could repair themselves thanks to fungi and bacteria

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EU-funded researchers are using biological matter to create unique new materials that can adapt to their environment and repair themselves. The science fiction writer Arthur C. Clarke famously said that ‘any sufficiently advanced technology is indistinguishable from magic.’ For Dr…

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¿Se ha descubierto el primer animal capaz de vivir sin oxígeno?

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En los últimos días hemos asistido a una serie de noticias sobre el supuesto descubrimiento del primer animal anaerobio, es decir, capaz de vivir sin oxígeno. Llamativos titulares se han sucedido en diversos medios. Algunos ejemplos: “Este ser vivo no…

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What’s going on in our brains when we plan?

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Study uncovers how the brain simulates possible future actions by drawing from our stored memories. In pausing to think before making an important decision, we may imagine the potential outcomes of different choices we could make. While this ‘mental simulation’…

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Cuckoos evolve to look like their hosts – and form new species in the process

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Two decades of cuckoo research have helped scientists to explain how battles between species can cause new species to arise This exciting new finding could potentially apply to any pairs of species that are in battle with each other…the co-evolutionary…

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