D.N.A For Chris

  • 5 Replies
  • 2835 Views

0 Members and 1 Guest are viewing this topic.

*

Offline simeonie

  • Sr. Member
  • ****
  • 351
    • View Profile
    • http://www.simeonie.co.uk
D.N.A For Chris
« on: 02/06/2005 12:49:36 »
I hear that someone here called Chris is an expert on D.N.A etc.

 My mother who was adopted has found her real brother but doesnt know if they shared both the same mother and father. Is it possible, using D.N.A from both my mother and her 'brother', to see if they share the same parents? Please reply soon! Thanks



----------------------
-__- my website!!!!
http://www.simeonie.co.uk
has forums too!
Think about it! lolz
« Last Edit: 02/06/2005 12:50:19 by simeonie »
----------------------
MY NAME IS NOT REALLY SIMEONIE IT IS SIMON!!!

*

Offline rosy

  • Neilep Level Member
  • ******
  • 1018
  • Chemistry
    • View Profile
Re: D.N.A For Chris
« Reply #1 on: 02/06/2005 22:31:23 »
I'm not called Chris, but...
you'd expect full sibs to share 50% of DNA, half sibs 25%.
There are loads of private companies out there who'll take your money to do a test (I used google search terms: dna sibling shared 50%). I think they select a few genes on different chromosomes and measure the number of genes which are shared with those that aren't. The confidence with which they can say how close a relationship is will of course depend on how many genes they test as it's a statistical thing.

*

Offline simeonie

  • Sr. Member
  • ****
  • 351
    • View Profile
    • http://www.simeonie.co.uk
Re: D.N.A For Chris
« Reply #2 on: 04/06/2005 11:55:03 »
Ooo thanks Rosy for that. Is it expensive for this DNA testing?

----------------------
-__- my website!!!!
http://www.simeonie.co.uk
has forums too!
Think about it! lolz
----------------------
MY NAME IS NOT REALLY SIMEONIE IT IS SIMON!!!

*

Offline chris

  • Neilep Level Member
  • ******
  • 5425
  • The Naked Scientist
    • View Profile
    • The Naked Scientists
Re: D.N.A For Chris
« Reply #3 on: 05/06/2005 22:05:42 »
Good question - I'd have posted it in the medicine section myself, but there we are !

Anyway, have a read of this article I wrote with Dalya Rosner about the process of Genetic (DNA) fingerprinting

And then ask any further questions that you need for clarification.

Chris

"I never forget a face, but in your case I'll make an exception"
 - Groucho Marx
« Last Edit: 05/06/2005 22:07:11 by chris »
I never forget a face, but in your case I'll make an exception - Groucho Marx

*

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • 12656
  • A stitch in time would have confused Einstein.
    • View Profile
Re: D.N.A For Chris
« Reply #4 on: 05/06/2005 22:09:35 »
pfft - that Chris is a smug basta! [:D]
Fledgling science site at http://www.sciencefile.org/SF/content/view/54/98/ needs members and original articles. If you can help, please join.

*

Offline rosalind dna

  • Neilep Level Member
  • ******
  • 2019
    • View Profile
D.N.A For Chris
« Reply #5 on: 14/01/2008 13:56:26 »
Try using the adoption agencies, online sites to find out about your now
extended and adoptive family. Good luck.
Rosalind Franklin was my first cousin and one my life's main regrets is that I never met this brilliant and beautiful lady.
She discovered the Single DNA Helix in 1953, then it was taken by Wilkins without her knowledge or agreeement.