74) Hydrangeas can have either pink or blue flowers. You : 1380797.
74) Hydrangeas can have either pink or blue flowers. You want to test if the flower color is influenced by the environment, such as the acidity of the soil. Design an experiment to test if soil acidity affects flower color.
75) Identical twins are genetically the same but do not always look or act exactly alike. Propose a hypothesis to explain this.
Refer to the figure below, and then answer the question that follows.
76) In his basic experiments, Mendel began with true-breeding parental (P) plants. What results did he see when he cross-fertilized P generation plants that had different traits?
A) The F1 plants had new traits that were a blend of P traits.
B) All F1 plants had the trait of one or the other P plant.
C) The F1 plants had an entirely new trait, not seen in either P plant.
Refer to the figure below, and then answer the question that follows.
77) In a dihybrid cross, if heterozygotes are crossed, what fraction of the offspring is expected to have both the dominant phenotypes?
A) 1/16
B) 1/3
C) 2/3
D) 3/16
E) 9/16
74) Hydrangeas can have either pink or blue flowers. You : 1380797
