A mutation is a change in the sequence of an organism's DNA. What causes a mutation? Mutations can be caused by high-energy sources such as radiation or by chemicals in the environment.
A deletion mutation occurs when a wrinkle forms on the DNA template strand and subsequently causes a nucleotide to be omitted from the replicated strand (Figure 3). Insertion or deletion of one or ...
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 ...
The scientists, including researchers from National Cancer Center Japan (NCC), said it remains unclear what causes the mutation pattern, so an unknown carcinogenic factor peculiar to Japan likely ...
In the last two decades, his team has identified genetic mutations that make people vulnerable to a variety of infectious diseases, including tuberculosis, mucocutaneous candidiasis, and herpes ...