Which Statement About the Interaction Between Genes and Environment Is

Multiple Choice

Which statement about the interaction between genes and environment is most correct?

A) Phenotypic variation is derived from a single source.
B) The phenotype, once determined, is invariable.
C) The phenotype is produced by interaction of genotype and the environment.
D) The phenotype can be quantified into genotypic and environmental components.
E) None of these is true.