What is used for comparison purposes in an experiment to show what would happen if no treatment or change in the independent variable is made. A. Constant
B. Control
C. Scientific theory
D. Scientific law

The allele for curly hair is incompletely dominant. if a mother is homozygous for curly hair and the father is homozygous for straight hair, what percentage of the offspring will exhibit characteristics of both parents? 25 percent 50 percent 75 percent 100 percent