If out of 100 offSprings 52 have red eyes 48 have brown eyes what are the probable genotypes and phenotypes of the parents?

If the offsprings have the blood group O and A,the genotype of parents would be:

Human eyes have convex lens.

An out-cross will have parents

A man with pure blue eyes and pure black hair marries a woman with black eyes and red hair. (black eyes are dominant over blue eyes and black hair over red hair). What will be the probabilities of phenotypes of the children?

Three children in a family have blood types O,AB and B respectively. What are the genotypes of their parents?

Children in a family have blood type O, A, AB and B respectively. What are the genotypes of their parents.