Karen has blue eyes,whereas Tom's eyes are brown.Their different eye colors can best be attributed to

A) behavior genetics.
B) heredity.
C) epigenetic molecules.
D) shared family environments.

Heredity

The transmission of physical or mental characteristics from one generation to the next through genetics.

Behavior Genetics

The study of how genetic and environmental factors influence individual differences in behavior.

Epigenetic Molecules

Chemical compounds that can modify the activity of genes without altering the DNA sequence, playing a critical role in gene expression and regulation.