If a 3 ×3 contingency table is presented, then you know that a study used _____ variables

A gene that actively controls the expression of a trait is called a ______ gene

a) recessive b) mutated c) recombinant d) dominant

Drugs used to treat erectile dysfunction, such as Viagra and Levitra, are effective for a relatively small percentage of the men who take them

Indicate whether the statement is true or false