FIG. 1.
(A) Capillary Electrophoregram (CE) from a premutation female showing the normal and premutation alleles (arrows) obtained by CGG repeat-primed PCR. (B) Electrophoregram from a full mutation male. The CGG repeat PCR produces in this case an uninterrupted series of triplet repeat products that indicate the presence of a long, expanded FMR1 allele.