• Home

 • DNA test FAQ

 • DNA test glossary


 DNA Tests Available

 • DNA paternity testing

 • DNA maternity testing

 • DNA sibling testing

 • DNA twin testing

 • DNA ancestry testing

 • DNA disease testing

DNA Testing 101.com

Consumer Information on Genetic DNA Testing

Full or Half Sibling? Get Siblingship DNA Testing

A sibling or siblingship DNA test can tell you if two or more persons share the same two parents. There are two types of DNA testing that can be performed to determine this genetic relationship:

  • Full Siblings. Full siblings are those persons with the same biological mother and father.


  • Half Siblings. Half siblings are those persons with same biological mother or father, but not both. Half-sibling twins occur when two sperm cells from two different males fertilize two egg cells at the time of conception.



    • DNA testing service providers

    The online consumer guide to genetic DNA testing services

    Copyright © 2005 www.DNATesting101.com