The presence of a specific trait is genetically inherited. there are only two possible outcomes for this trait: an individual either inherits the trait or does not inherit the trait. which statement best describes how parents influence this trait? a) each parent contributes one nitrogenous base for this trait. b) each parent contributes one allele for this trait. c) each parent contributes two genes for this trait. d) each parent contributes two chromosomes for this trait.