1. Use the following information to answer Questions 54 and 55. In an experiment, a red-flowered plant was crossed with another red-flowered plant and the following results were obtained: 448 red flowers and 154 white flowers in the F1 generation. Which of the following represents the genotypes of the parents if R is for red gene and r for white gene? 54

2. Good quality food will perform the following functions in humans except 33

3. Improper sewage disposal could be dangerous for the following reasons except 49

4. The function of the human red blood cells is to 12

5. The endocrine gland secreting hormone that induces the thyroid gland to produce more thyroxine is 21