Select all the correct answers.
a mother has blood type a and her son has blood type o. which blood types are possible for the father?

ab
a
b
o

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