paternity testing
DNA TESTING
UK DNA clinic
DNA testing uk
DNA testing

Full sibling to sibling DNA testing. Testing siblings as biological relations.

(Click Here to Order a Free Collection and Information Kit for Brother to Sister testing)

Option 1. Full Siblingship Test – to establish whether or not siblings share the same mother and father.

 
Sibling

 

  • Accuracy of 90+%
  • To establish whether or not a brother and sister have the same father AND mother.
  • High number of DNA regions analysed
  • Uses DNA statistics to evaluate the amount of DNA sharing and to deduce a biological relationship. Full siblings have a lot more DNA in common than half siblings. Half siblings share more DNA than unrelated persons.
  • For a higher accuracy, include DNA samples from parents or other siblings. This allows us to pinpoint the exact origin of each sibling's DNA.
  • If you wish to test 2 or more brothers, the Y chromosome may be a cheaper option. Click for brother to brother testing options.
  • If you wish to test 2 or more sisters, please see our
    sister to sister page.
 

Summary of Sibling to Sibling Testing Costs: £299 (mother's DNA included for free)

Test

With Mother's DNA

Accuracy

Cost

Order

Sister to Brother (2 persons) with no Mother's sample
90%
£299
or
Sister to Brother (3 persons) with 1 Mother's sample
95%
£299
or
Sister to Brother (4 persons) with 2 Mother's sample
99%
£299
or

 

Option 2. Mitochondrial DNA Test – testing to a very high accuracy for the same mother only.

 

 

  • Accuracy of 99+%

  • To establish whether or not a siblings have the same mother only.

  • We sequence specific areas of DNA only inhertited from the mother (mitochondrial DNA).
  • We use most respected and most widely used mitochondrial DNA analysis software in the world.
  • All siblings to the same biological mother will have the exact same mitochondrial DNA sequences.
  • If you wish to test 2 or more brothers, the Y chromosome may be a cheaper option. Click for brother to brother testing options.
  • If you wish to test 2 or more sisters, please see our
    sister to sister page.
 

Summary of Mitochondrial DNA costs: £235 (£75 for each extra person)

No. of persons

Accuracy

Cost

Taking the test

Sister to Brother (2 persons)
99%
£235
or
Sister to Brother (3 persons)
99%
£310
or
Sister to Brother (4 persons)
99%
£385
or