Dictionary of Human Evolution and Biology

  • -id > 9:3


Coding portion of DNA; the complete nucleotide sequences of some genes in DNA (see cistron) consist of stretches that code for amino acids (exons), and some interspersed stretches that are transcribed but not translated, having been edited out of heterogenous mRNA (hmRNA); the latter are called introns.

Cf. motif and domain.

Full-Text Search Entries