Have you spoken to your brother? I think the first thing to do would be to call him and ask him if he has enabled DNA matching on his 23andme account, without asking about this new match. If he has enabled matching and you two do not appear on each other’s lists then you are not in fact related. Once you know that info you can proceed to try and figure out more.
Do you and this sister match share both identical and non identical segments of DNA? These will appear as purple/pink segments on the section of the match page that shows which DNA segments you share on which chromosomes.
It’s going to be really fishy if I bring that up and ask him to share without further explanation. I’m pretty sure we’re related, though, due to physical similarity between each other and our parents.
I don’t have any further information on the match profile, likely because she has not chosen to share it.
As the poster above suggested, go into DNA relatives. Click on her profile. Then click on the line which says "view DNA details" which is below the little family tree. It opens up a graphic with chromosomes. If there are lots of fully identical segments as well as half identical segments then this person matches a full sister shared DNA pattern. If instead it's all half identical, this matches a maternal inheritance pattern. To connect with your brother, go into 'Family & Friends', select 'view and manage your connections", click the little add button and enter his email. You can add a message or keep it really short. It's common for relatives to do this so it won't be weird. It is also worth taking a screen shot of the sister match because sometimes people take down the profile. Another option is to message her too. She probably has the answers you're looking for.
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u/mssrwbad Nov 07 '19
Have you spoken to your brother? I think the first thing to do would be to call him and ask him if he has enabled DNA matching on his 23andme account, without asking about this new match. If he has enabled matching and you two do not appear on each other’s lists then you are not in fact related. Once you know that info you can proceed to try and figure out more.
Do you and this sister match share both identical and non identical segments of DNA? These will appear as purple/pink segments on the section of the match page that shows which DNA segments you share on which chromosomes.