Article
Characterization of a small supernumerary ring X chromosome by fluorescence in situ hybridization.
American journal of medical genetics - 1 Dec 1993
Duncan A M, Macdonald A, Brown C J, Wolff D, Willard H F, Sutton B
Abstract excerpt
We report on a male with mild learning disabilities who has a supernumerary marker chromosome. The marker chromosome was defined by fluorescence in situ hybridization as a ring X chromosome with breakpoints in the juxacentromeric region. Replication studies suggest that the ring X is late-replica...
Topics
- Base Sequence
- Child
- DNA Primers
- Dosage Compensation, Genetic
- Humans
- In Situ Hybridization, Fluorescence
- Karyotyping
- Male
- Molecular Sequence Data
- Phenotype
- Ring Chromosomes
- X Chromosome
