Glossary



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  • Deletion : Loss, as from mutation, of a piece of genetic material from a chromosome.
  • Differentiation : Biological process leading to the formation of specialised cells.
  • Dimer : A molecule (consisting of two identical simpler molecules).
  • DNA : Deoxyribonucleic acid. DNA is a long-chain (or polymer) made up of four nucleotides (adenosine, cytosine, guanine and thymine). DNA carries the genetic information that encodes proteins in the cell.
  • Docosanoic acid : Also known as behenic acid; saturated fatty acid with 22 carbon atoms.
  • Dominant : A dominant trait is a human characteristic determined by a single allele (gene) and expressed over any other alleles for a given trait. The gene for this dominant trait can be inherited from either the father or the mother.