Scientists for the first time have mapped out the molecular "switches" that can turn on or silence individual genes in the DNA in more than 100 types of human cells, an accomplishment that reveals the ...

然而，在这些已知的生命过程中，一个共同的“规则”似乎从未被打破——所有序列特异性的聚合酶，都必须依赖一条核酸（DNA 或 RNA）作为合成的模板。那么，一个更大胆的问题随之而来——生命世界中是否存在“例外”？有没有一种聚合酶，可以完全摆脱对核酸模板的依赖，直接以蛋白质为模板来合成 DNA？ 换句话说，蛋白质所蕴含的化学信息，能否直接被“翻译”回 DNA ...

Most hypotheses suggest that earlier forms of life had partial genetic codes and used fewer than 20 amino acids. To test these hypotheses, a team from Columbia and Harvard decided to see if they could ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This chart was used in the National ...

Forbes contributors publish independent expert analyses and insights. Recent breakthroughs in genetics research may have uncovered new genes underlying common psychiatric disorders. Schizophrenia and ...

Decades of research has viewed DNA as a sequence-based instruction manual; yet every cell in the body shares the same genes – so where is the language that writes the memory of cell identities?

Did you know that many of us have up to 4% neanderthal DNA? Did you know that many of us have up to 4% neanderthal DNA? And that 100% of your DNA may come from outer space? No joke. The biochemistry ...