Polycystic kidney disease is a dominant trait that causes the growth of numerous cysts in the kidneys. the condition eventually leads to kidney failure. a child with polycystic kidney disease is born to a couple, neither of whom shows the disease. what possibilities might explain this outcome?

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals