Which of the Following Is True of a Trait Controlled

Multiple Choice

Which of the following is true of a trait controlled by a dominant gene?

A) The trait will be expressed even if the instructions of the corresponding gene in the other half of the pair are different.
B) The trait may or may not be expressed,depending upon whether environmental conditions facilitate or prevent the expression of the trait.
C) The trait will always be a positive,beneficial trait.
D) The trait will be expressed only if the instructions of the corresponding gene in the other half of the pair are the same.