Which statement best describes the structure of a DNA molecule
A portion of DNA that codes for a protein, that causes a trait, is a
Chromosomes contain...
Mutations are random.
All mutations are harmful to an organism or species.
What is mutation?
Genes contain the instructions for assembling

Based on looking at the diagram, where do chromosomes live.
Inherited traits are . . .
What does a chromsome unravel to be...