A photomicrograph of an individual's chromosomes arranged
in a standard format showing the number, size, and shape of
each chromosome type; used in low-resolution physical mapping
to correlate gross chromosomal abnormalities with the characteristics
of specific diseases. (ORNL)
Unit of length for DNA fragments equal to 1000 nucleotides.
Deactivation of specific genes; used in laboratory organisms
to study gene function.
See also: gene, locus,
model organisms (ORNL)