Question

In human beings,tongue rolling is an autosomal dominanat trait over non rolling trait.A tongue roller male marries a non roller female.They have four children of which only one daughter is born as a tongue roller and she got married to a non roller male producing three sins and one daughter.None of these offsprings are tongue rollers.Represent pedigree chart of family for the occurance of tongue rolling trait.

Answer 1

This is the pedigree...I mentioned even the index above...For ur convenience....Even i drew a punett square