For more than 20 years, scientists treated ghrelin as the body’s master hunger switch. A new look at snake genomes suggests ...

The treatment, the first of its kind, was approved by the Food and Drug Administration on Thursday. “Our baby was born deaf, and now he can hear,” said one parent. By Gina Kolata The Food and Drug ...

An experimental gene therapy appears safe and highly effective for restoring hearing to people born with a rare form of deafness, researchers reported Wednesday. The study, the largest and longest to ...

The genetic building blocks of life—formed from the four nucleotides adenine (A), cytosine (C), guanine (G), and thymine (T)—are read in groups of three known as codons. While some codons (known as ...

Our genes are written in long strings of three-letter units composed of four different nucleotides. These units - or codons - specify one of many amino acids, the building blocks of proteins. Multiple ...

Human genes are written in long strings of three-letter units composed of four different nucleotides. These units—or codons—specify one of many amino acids, the building blocks of proteins. Multiple ...

Scientists at UC Berkeley have discovered a microbe that bends one of biology’s most sacred rules. Instead of treating a specific three-letter DNA code as a clear “stop” signal, this methane-producing ...

In 2018, a nervous-looking He Jiankui took the stage at a scientific conference in Hong Kong. A hush settled over the packed auditorium as the soft-spoken Chinese scientist adjusted his microphone and ...

Alex Sundby is a senior editor at CBSNews.com. In addition to editing content, Alex also covers breaking news, writing about crime and severe weather as well as everything from multistate lottery ...

An illustration of E. coli. Scientists have been racing to shrink the genetic code of this bacterium. Kateryna Kon / Science Photo Library via Getty Images The DNA of nearly all life on Earth is made ...