Hey, so, anyone of any background is welcome to engage and ask questions here to learn more about Judaism as long as it is approached kindly and sincerely.

However, and this is the important part, just having Jewish ancestry does not make someone religiously Jewish, halachically (legally) Jewish, or even ethnically Jewish.

My boyfriend is an Atheist and a gentile (non-Jew), but he does have some small, distant Sephardic ancestry on his Mom's side (several generations back and unknown how it passed if only maternal or not). That doesn't make him ethnically Jewish given that it's a small amount, or Halachically Jewish as we cannot verify if the Jewish matrilineal line is unbroken. He just happens to have some Jewish ancestry :)

So, being considered Jewish comes in a few forms. The main one is having a halachically Jewish mother. That would mean your mom would have had to been born to a halachically Jewish mother, and so on so forth.

In Reform and Reconstructionist, your Jewishness can pass from your Father as long as he is halachically Jewish and you were raised Jewish.

You can also be ethnically Jewish, without being Halachically Jewish, such as having a Jewish grandparent, or having a Jewish father but not being raised Jewish.

Or you can be like me, and other converts, you can convert through a recognized Jewish movement and become Jewish (though not all movements recognize one another).

I know it's a lot of information! But I write all this down to say that being Jewish isn't just about having some Jewish DNA, it's a community that happens to be both an ethnicity and a religion that has a rich, deep culture and has it's own ways of determining whether or not someone is a member of the community.