4. Which of the following represent correctly paired DNA nucleotides?

42. What is the importance of the hydrogen ion gradient in chemiosmosis of cellular respiration?

30. The pedigree above demonstrates the phenotypes of three generations of a family with an autosomal recessive disorder. If individual II3 has a baby with a male who is heterozygous for this trait, what is the probability that their child will have this disorder as well?

18. The image below depicts the beginning processes of DNA replication. What is the function of the two enzymes labeled in the diagram?

21. The following image depicts a cellular process which is essential for providing genetic diversity in sexually reproducing organisms. What cellular process is shown below?

23. Which of the following is a likely result from uncontrolled cell division in eukaryotic cells?

18. Which temperature and pH profile curves on the graphs provided were most likely generated from analysis of an enzyme from a human stomach, where conditions are strongly acidic?

2. You are conducting a test to determine the effects of different colored lights on starch production in potatoes. You have decided to use yellow, green, red, and blue, and white light and measure the total mass of starch produced at the end of 2 weeks. What would your dependent variable be in  this experiment?

43. Mitosis produces two identical daughter cells while meiosis produces 4 identical gametes. 

9. Which small-scale mutation would be the most likely to have the greatest negative effect on the functioning of a protein?