The answer is d because natural selection is the process in which organisms adapt to their environment and all of these answers fall into examples of natural selection
Her father has to have hemophilia as well, and the mother is a carrier or also has hemophilia. So if we pretend that the hemophilia gene is x, you need to have xx to have hemophilia. The father must have the genotype<span> Yx and the mother has the have Xx or xx.
-Arika <3
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