In other words, mutations occur randomly with respect to whether their effects are useful. Thus, beneficial DNA changes do not happen more often simply because an organism could benefit from them.

A new study draws a line between random genetic mutations and predictable epigenetic changes used to measure biological aging ...

As opposed to gene-level mutations, mutations that alter longer stretches of DNA (ranging from multiple genes up to entire chromosomes) are called chromosomal mutations. These mutations often have ...

Mutations occur continuously and can be spontaneous. Most are caused by errors when the DNA is copied prior to cell division. They can also happen because of: ionising radiation close ionising ...

This DNA has suffered a mutation, either through mis-copying (when its parent cell divided), or through the damaging effects of exposure to radiation or a chemical carcinogen.

Neurogeneticists have discovered a novel genetic mutation and associated buildup of toxic proteins in the brain -- a type of buildup distinct from amyloid or tau, proteins that have long been the ...

“Now we’re kind of looking back on why those epigenetic clocks tick, and it appears it might be through changes in our DNA in the form of mutations,” Koch said. Researchers say conclusive ...

Researchers uncovered unexpected patterns of mutation inheritance in the trees, revealing that some DNA damage persists unrepaired. In the case of blood stem cells, this can be for two to three years.

A genetic mutation is an alteration in the genetic code found in DNA. A mutation changes the specific instructions of the ...