Part D The idea of molecular clock genes has been studied for decades, but the hypothesis remains a controversial topic in
evolutionary biology. Why do you think that is the case? What are three questions you still have about the use of
molecular clocks?

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