No.
Yes.
ex: parents and grandparents (from my textbook)
Father or mother
One's lineal ascendant is an ancestor in the direct line of descent, such as a parent, grandparent, great-grandparent, and so on. They are the individuals from whom a person is descended through a lineage of parent-child relationships.
brother
A grandson or grandchild, or remoter lineal descendant., A cousin., The son of a brother or a sister, or of a brother-in-law or sister-in-law.
Mothers brother ( uncle ) = amoo
his ascendant sign is gemini.
Your Uncle.
uncle
Your mother's son is your brother or your half brother.
A cousin brother means , the son of the father or mothers , brother or sister.