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Glossary of Genetics Terms
beginning with letter D
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deletion Tweet Definition of deletion Like Definition of deletion on Facebook
noun
  1. An item that has been or will be deleted.
  2. The act of deleting.
deoxyribonucleic acid Tweet Definition of deoxyribonucleic acid Like Definition of deoxyribonucleic acid on Facebook
noun (abbreviationDNA)
  1. (context, genetics, biochemistry) A nucleic acid found in the nucleus of all cells; consists of a polymer formed from nucleotides and shaped into a double helix; it is associated with the transmission of genetic information.
descendant Tweet Definition of descendant Like Definition of descendant on Facebook
noun
  1. One who is the progeny of someone at any distance of time; e.g. a child; a grandchild, etc.
  2. (Biology) A later type; as, dogs evolved from relatives of early wolves.
determinant Tweet Definition of determinant Like Definition of determinant on Facebook
noun
  1. A determine, determining factor; an element that determines the nature of something
  2. (linearalg) The unique scalar function over square matrix, matrices which is distributive over matrix multiplication, multilinear in the rows and columns, and takes the value of 1 for the unit matrix. Abbreviation: det
  3. (biology) A substance that causes a cell to adopt a particular fate.
DNA Tweet Definition of DNA Like Definition of DNA on Facebook
initialism
  1. (genetics) deoxyribonucleic acid, Deoxyribonucleic acid, the genetic material of nearly all forms of life.
  2. (biochemistry) A biopolymer of Deoxyribonucleic acids (a type of nucleic acid) that has four different chemical groups, called bases: adenine, guanine, cytosine, and thymine.
  3. w:Defense Nuclear Agency, Defense Nuclear Agency.
  4. Did Not Answer.
  5. Did Not Arrive (used when someone fails to keep an appointment).
  6. Did Not Attend.
  7. Do Not Assume.
  8. Drugs 'n' alcohol.
dominant Tweet Definition of dominant Like Definition of dominant on Facebook
noun
  1. (music) The fifth major tone of a musical scale (five major steps above the note in question); thus G is the dominant of C, A of D, and so on.
  2. (music) The triad built on the dominant tone.
adjective
  1. Ruling; governing; prevailing; controlling; predominant; as, the dominant party, church, spirit, power.
downstream Tweet Definition of downstream Like Definition of downstream on Facebook
adjective
  1. Lower down, in relation to a river or stream
She lives downstream from the dam.
adverb
  1. Following the path of a river or stream
We spent the day paddling downstream in our canoes.
duplication Tweet Definition of duplication Like Definition of duplication on Facebook
noun
  1. The act of duplicating, or the state of being duplicated; a doubling; a folding over; a fold.
  2. The act or process of dividing by natural growth or spontaneous action; as, the duplication of cartilage cells.

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