What is the link between heredity and tobacco addiction?
ASubstances cause people to have addicted genes.
BSome people have genes that make it easier for them to become addicted to tobacco.
CEveryone has genes that make it easy to become addicted to tobacco.
DGenes are not related to addiction.
ASubstances cause people to have addicted genes.
BSome people have genes that make it easier for them to become addicted to tobacco.
CEveryone has genes that make it easy to become addicted to tobacco.
DGenes are not related to addiction.