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?

If a set of instructions that determines all of the charactersitics of an organism is comparedto a book,and a chromosme is compared to chaper in the book,then what might be compared to a paragraph in the book?

(drag each tile to the correct identify which questions can be answered by what can be answered by science or which cannot. -is it right or wrong to use genetic engineering to produce new food products? -what are the most common social settings that tend to produce accomplished artists? -if a new gene is added to the genome of a tomato species, will that species be more resistant to insects? -should humans use biotechnology to bring extinct organisms from the fossil record back to life? -do the types of organisms found in the fossil record appear in consistent sequences in different parts of the world? -are michelangelo's paintings more impressive than rembrandt's?

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.