Which of the following is always true regarding dizygotic twins?

A) They have different genotypes.
B) They have different phenotypes.
C) They have the same genotype.
D) They have the same phenotype.

Dizygotic Twins

Fraternal twins; these siblings result from two separately fertilized eggs, so they are no more similar genetically than nontwin siblings are.

Genotypes

The genetic constitution of an individual organism, distinct from its observable characteristics or phenotypes.

Phenotypes

Observable characteristics or traits of an organism resulting from the interaction of its genotype with the environment.