it's just a recessive gene being passed down through your family.. And your's is showing while the other people in your family's isn't showing.
Your great aunt is not your great grandparent but she could be a great grandparent if she has children , grandchildren and great grandchildren.
Your great-n uncle is either the brother of your great-(n-1) grandparent, OR the husband of the sister of your great-(n-1) grandparent, where 'n' represents the number of 'greats.' For example, your great great great great uncle (n=4) is the brother of your great-great-great grandparent or the husband of the sister of your great-great-great grandparent (i.e. your great great great great aunt's husband).
How did the word grandparent or great grandparent come to be?
An ancestor is a parent, grandparent, great-grandparent, great-great-grandparent. To come from an ancestor you would be directly related to these people by birth.
If someone is your fourth cousin, their great great grandparent was a brother or sister of your great great grandparent.
If you adopt your own grandparent then you will be your own great grandparent and things get confusing.
Your grandparent's uncle is your great great uncle. There are all sorts of cousins, so the answer varies depending on what degree of cousin to your grandparent is being discussed. However, in the simplest case, your grandparent's first cousin is your first cousin, twice removed.
You may be related to your great aunt's cousin through your great great grandparent, who is also her grandparent.However, your great aunt could also have cousins from the side of her family that is not related to you. (Children of siblings of her father, if her mother was the sister of your great grandparent.) Those cousins are not related to you.In addition, your great aunt could be your great aunt because she married the brother of your grandparent. In that case, none of her cousins are related to you.
It is based on the common ancestor(s). If you share a grandparent, you are first cousins. If you share a great grandparent, you are second cousins. If you share a great great grandparent, you are third cousins. If you share a 3great grandparent, you are fourth cousins. If you are at different levels of from the common ancestor, you get the how many time removed. Example, Your grandparent is their great grandparent you are first cousins once removed.
First cousins are relatives who have the same grandparent. Second cousins are relatives who have the same great grandparent Third cousins are relatives who share the same great great grandparent. If you and a relative have great grandparents who were brother and sister, then you share a great great grandparent, and are third cousins.
If your great grandparent is another person's great great great grandparent, the other person could be related to you in one of several different ways. That person could be your:grandchildgreat niece or great nephewfirst cousin, twice removedsecond cousin, twice removed
The two great grandmothers are first cousins to each other and therefore share a grandparent. That common ancestor is the great-great-great-grandparent of both Jack and Jill. * First cousins share a grandparent. * Second cousins share a great-grandparent. * Third cousins share a great-great-grandparent. * Fourth cousins share a grea-great-great-grandparent. Jack and Jill are fourth cousins to each other