
The first 170 kb of the human X-chromosome (panel a) depicted by the GPxI method
that assigns one of four
graytone pixels to each base (A stretch of 50 kb of un-sequenced bases are omitted). The framed section is magnified
to show that the motifs in the pattern do not repeat identically as they would in truly repetitive DNA (e.g.the computer constructed
repetitive sequence shown panel b). Instead, they are variations of
a motif.
Guenter Albrecht-Buehler, Ph.D.
Fellow, European Academy of Sciences, Brussels
Fellow, Institute for Advanced Studies, Berlin
Robert Laughlin Rea Professor of Cell Biology
Northwestern University Medical School, Chicago