If neither Variable A nor Variable B has a main effect you can have
a. no interaction
b. a ceiling effect interaction
c. an antagonistic interaction
d. a synergistic interaction
Question 2
Dr. Caster decides to perform an experiment investigating the effects of caffeine and sugar on motor skill performance. He randomly assigns his subjects to one of four groups: high caffeine/high sugar, high caffeine/no sugar, no caffeine/high sugar, no caffeine/no sugar. People in each group are given a soft drink containing the appropriate levels of sugar and caffeine, and then tested on a mirror tracing task. Dr. Caster finds that the people in two of the groups (the high caffeine/high sugar and the no caffeine/no sugar) perform at about the same high level, while the other two groups (the no caffeine/high sugar and high caffeine/no sugar) perform at about the same poor level. Dr. Caster's results show
a. a main effect of caffeine
b. a main effect of sugar
c. a synergistic interaction
d. an antagonistic interaction
Demographic change and the effect on people social, and economic life
Deforestation is one of the main sources of greenhouse gas emissions
Effect of an Increase in R&D in the Follower Country on the Steady State
Identify the variable representing each described quantity in the equation
Greenhouse effect.
Phenotype patterns in the F2 of a dihybrid cross that result from epistatic gene interaction