Which is not a model according to the scientific definition

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

Does the sun release radiant energy?

Across of blue x blue (both heterozygous) would result in