1.How was the Spike (pet rat snake) used in the following topics? B. Mitosis 2.Sugar, Phosphate and Base are the components of what structure? Nucleotides 3. What does your DNA code for? It only uses certain portions of those genes. 4. Give two examples of the answer in question #4. 5. David’s mother says that his son Anthony looks almost identical to David when he was a baby. Does this mean Anthony got all his genes from his father and none from his mother Catherine? Explain?