Evidence This matters because . . . (How does this evidence support or refute the claim?) Therefore, . . . (claim) None of the spider offspring have a new gene version (a gene version not found in either parent). It Maters Because If The Offspring Doesnt Have The Same Gene The male parent has F1F3 gene versions while the female parent has F1F2 gene versions. Offspring D has F2F3 gene versions and has the trait for high silk flexibility. This is a trait that neither parent has.