I was adopted when I was 15 months old, I have always known my biological Mother. At the age of eight, my friends Father told me he was my Dad, But my mother has totally denied this. The man treated me very good. Some years ago he passed away still saying I was his child, I was put into his obituary along with my children as his grandchildren. The man I am married to now turned out to be this mans relative, if he was my Father we would be cousins. Would a DNA test between us children tell me the truth?

The father in this case is deceased and none of his dna is available.
There is no father available at all for testing. I just want to know if two siblings can, on their own, determine if they have the same father. please don't waste my time by answering if you don't know.

Im at 2 weeks pregnant and i want to know if its a healthy or not.and if not a healthy ones what are the issues in it.the father has a genetical traits that im afraid of coz one of his sibling happen to just died even before he was born and the other was at 2 years old just died with ephileptic...This will be my third child but i have also a history of pre eclampsia and my two kids were born premature.

We did when we were in high school and I still do it in college now.

I take her math tests and she takes my science tests.

My long lost sister and I recently reunited after 16 years of being separated. We share the same mother and my father's name is on her birth certificate. About 7-8 years ago, a DNA test was performed to determine if, in fact, she was my father's daughter. (Making her my 1st and only full blooded sibling) However, our parent's versions of the results of that test are very very different. I was wondering if there are records of this test and who may have access to them. Alternatively, maybe an AFFORDABLE sibling DNA test could tell the truth, however, I dont have hundreds to spend so I am not really sure what my options are when it comes to finding the truth. HELP!

I have a 3 yr old and a 4 year old I am putting in preschool for 3 hours/2-3 days per wk. they have never been in any preschool or childcare. They are away from me for sunday school or my cousin that is our babysitter . My 4 year old is very shy and my pediatrician highly recommends preschool a few hours per wk to help ease into being away from me. At one preschool I looked at they tested my 3 yr old and said she could go to the 4 yr old class, and they would be together. (there is one other 3 yr old in that class, too) In another preschool they will not be together. Would it be better to send them together to get used to being away from me and with other kids but have each other till they get used to the idea? (one step at a time) should they go ahead and get used to the idea of being apart since they will be next year?
the school didnt do a formal test. the teacher just talked to her, did puzzles with her while seeing what she knew and where she was at in learning. she didn't want her to be "lost" or behind the other kids. My daughter didnt even know she was "testing" her, she just thought they were playing.

I have found the woman I believe to be my half sister. We are considering taking a DNA test to see--however, the father we share is not available. Is blood better than buccal for the test? Are we likely to get false indicators? How do I know the company is reputable?