DNA is fundamental to the biology of all life on Earth, but how many of us actually know what it is or what it's made of?

and he or she might even undergo heart attack or stroke—all because of a single nucleotide mutation (Figure 1). SNPs are important as markers, or signposts, for scientists to use when they look ...

a thymine nucleotide might be inserted in place of a guanine nucleotide. With base substitution mutations, only a single nucleotide within a gene sequence is changed, so only one codon is affected ...

A single DNA nucleotide, the base unit of the human genome, is a tiny, tiny thing. Each one is made up of only 30 atoms (plus or minus a few, depending on the base), making it much too small to be ...

CMD-related SNPs. CMD, coronary microvascular dysfunction; SNP, single nucleotide polymorphism. The findings suggest that a genetics-driven approach could revolutionize CMD diagnosis and treatment ...

Uracil can also be involved in mutations, which are changes in the genetic material. One type of mutation, called a point mutation, occurs when a single nucleotide is changed. In RNA, a point mutation ...