Details

Autor(en) / Beteiligte

• Sutherland, Grant R
• Richards, Robert I

Titel

DNA Repeats -- A Treasury of Human Variation

Ist Teil von

• The New England journal of medicine, 1994-07, Vol.331 (3), p.191-193

Ort / Verlag

United States: Massachusetts Medical Society

Erscheinungsjahr

1994

Quelle

MEDLINE

Beschreibungen/Notizen

• Human DNA contains many sequences of nucleotides that occur repeatedly from a few to many thousand times within the genome. Nonrepeated, or unique, sequences are, of course, each represented twice -- once on each of a pair of chromosomes. Repeated sequences vary in complexity, from the full complement of an intact gene down to isolated sequences of only one or two base pairs. For example, the α-globin gene is normally present as two copies on each chromosome 16; thus, most people have four copies of this gene. There are about 200 copies of genes for ribosomal RNA in our genomes. . . .