Why do human brains vary in size and shape, and how did our brains expand over evolutionary time to give us our enhanced ...

Nearly every cell in the human body contains essentially the same genetic information, yet different cells activate different genes. For regulatory proteins to reach these genes, DNA must be ...

Nevertheless, some preliminary steps have been taken. Researchers have managed to add some new amino acids to a bacterial cell and were able to make proteins that were one amino acid less than usual.

The genetic code is usually described as an orderly language, read one letter after another in precise three-letter units.

An essential cellular enzyme successfully transcribed synthetic DNA letters, bringing expanded genetic codes closer to biological use.

Before a cell divides, its DNA is replicated so that each daughter cell inherits the same genetic information. The two copies, known as "sister chromatids," are held together by a ring-shaped protein ...

DNA, the blueprint of life, is best known for its fundamental role as genetic material—storing and transmitting biological information through the precise sequence of its bases. For decades, this ...

ETH Zurich scientists have created “MetaGraph,” a revolutionary DNA search engine that functions like Google for genetic data. By compressing global genomic datasets by a factor of 300, it allows ...

Two new federally funded studies offer detailed views of proteins repairing broken DNA inside tightly packed chromatin, and of the molecular toolkit they assemble at a break, with potential implicatio ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists showed that bacterial RNA polymerase can read an eight-letter DNA alphabet containing four synthetic genetic letters.