No
Generally the niece, unless the step child was legally adopted.Generally the niece, unless the step child was legally adopted.Generally the niece, unless the step child was legally adopted.Generally the niece, unless the step child was legally adopted.
The great niece and the great uncle's son are first cousins once removed. Many cultures, but not all, would consider this to be too close a relationship for marriage.
No, it can't be. My uncle can't marry my younger sister because both are related by blood. Everywhere, there are many rules and regulations against them. This is an incest and cause genetical disorders and pedigree collapse. Noneover the world, these marriages are allowed, eventhough many foolish girls in South India marry their maternal uncle and got arrested and killed.
Great niece's baby is your great-great niece or great-great nephew.The system works like this:Your niece's child is your great niece/nephewYour great niece's child is your great great niece/nephewYour great great niece's child is your great great great niece/nephewYour great great great niece's child is your great great great great niece/nephew...
Yes, your niece's daughter is your grand niece. You are her great aunt or great uncle.
No.
This would be your great niece. The legality would depend on where you live and how old she is.
Your husband's great niece is also your great-niece in law, so your great niece would be great niece in law to your husband.
Your niece's daughter is your great niece and her granddaughter is your great great niece. You are the granddaughter's her great great aunt or great great uncle.
You are her great-aunt/uncle. She is your great-niece.
The granddaughter of your niece is your great great niece.