What is the legal ruling regarding a grandmother suckling her granddaughter with her maternal uncle? And does the prohibition of a wife upon her husband due to the wife's mother suckling the husband's child from another woman apply to this case? And can the difference in the girl's physical characteristics from her family be due to this suckling?

No statement has been found indicating the annulment of marriage due to children being breastfed by their grandmother. Your breastfeeding by your grandmother does not annul the marriage between your father and your mother. It is disliked for a child to be breastfed by a wicked woman, a polytheist, a foolish woman, a bad-tempered woman, a woman afflicted with leprosy, vitiligo, or blindness, or an animal, because breastfeeding can alter temperament and affect the child. This matter has no bearing on you, and there is no harm to you in the difference in resemblance between you and your family.