DNA, Recombinant -- See Also Genetic Engineering Directed modification of the gene complement of a living organism by such techniques as altering the DNA, substituting genetic material by means of a virus, transplanting whole nuclei, transplanting cell hybrids, etc.
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DNA Typing -- See DNA Fingerprinting A technique for identifying individuals of a species that is based on the uniqueness of their DNA sequence. Uniqueness is determined by identifying which combination of allelic variations occur in the individual at a statistically relevant number of different loci. In forensic studies, RESTRICTION FRAGMENT LENGTH POLYMORPHISM of multiple, highly polymorphic VNTR LOCI or MICROSATELLITE REPEAT loci are analyzed. The number of loci used for the profile depends on the ALLELE FREQUENCY in the population.
Doctor films (Motion pictures) -- See Medical films (Motion pictures) This heading is used as a topical headings for works about fiction and/or nonfiction films that feature medical personnel and the practice of medicine. When used as a topical heading it is subdivided by the appropriate geographic, topical, and/or form subdivisions.
Doctor television programs -- See Medical television programs This heading is used as a topical heading for works about fiction and/or nonfiction television programs that feature medical personnel and the practice of medicine. When used as a topical heading it is subdivided by the appropriate geographic, topical, and/or form subdivisions.
Doctrinal theology -- See Theology, Doctrinal Here are entered works on the doctrines of Christianity treated collectively. Works on Christian dogma in the abstract are entered under Dogma. Works on the dogma or doctrines of non-Christian religions are entered under the individual religion with subdivision Doctrines, e.g. Buddhism--Doctrines. --subdivision Doctrines under individual denominations, e.g. Catholic Church--Doctrines
