Genetics

A single DNA tweak leads to blond hair

A single-letter change in the genetic code is enough to generate blond hair in humans, in dramatic contrast to our dark-haired ancestors. A new analysis by Howard Hughes Medical Institute (HHMI) scientists has pinpointed ...

Oncology & Cancer

Mobile DNA elements can boost the development of malignant tumors

Nearly half of the human genome is composed of transposable elements, which are sequences of DNA that are able to replicate and relocate in the genome. Previously, transposable elements have been considered "junk" DNA in ...

Genetics

Diabetes-causing gene can be regulated like a rheostat

Researchers at the Centre for Genomic Regulation (CRG) and Imperial College London have found a switch that regulates the activity of a gene that causes diabetes. The findings, published in Nature Cell Biology, highlight ...

Genetics

3D map reveals DNA organization within human retina cells

National Eye Institute researchers mapped the organization of human retinal cell chromatin, the fibers that package 3 billion nucleotide-long DNA molecules into compact structures that fit into chromosomes within each cell's ...

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