Zygosity testing


Description

Molecular analysis of polymorphic markers can be used for �DNA fingerprinting� to determine the zygosity of twins. Monozygotic (identical) twins will inherit the same alleles from their parents for all of the markers tested, whereas dizygotic twins are likely to inherit different alleles (but they may inherit the same alleles by chance).


Request a test

When requesting this test please use the referral form provided. Please also refer to any additional information provided for this test.


Additional information

For additional information please click on the link Download additional information >


Sending address

Great Ormond Street Hospital NE Thames Regional Genetics Service Laboratories
Great Ormond Street Hospital for Children
Barclay House
37 Queen Square
London
WC1N 3BH

Laboratory service

Genetics


Sample requirements

1ml EDTA neonates, 5ml EDTA adults


Reference range

Not applicable


Turnaround time

20 days


Cost

Upon request


Call in advance?

Not required


Genetics

The Genetics Laboratories provide an extensive range of Cytogenetics and Molecular Genetics diagnostic testing services.

© 2011 Great Ormond Street Hospital for Children NHS Trust