Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Three simple types of gene-by-environment (G × E) interactions: (a) a fan-shaped interaction, (b) a crossover interaction with the wild-type alleles demonstrating an increased probability of disease in low-risk environments and a decreased probability of disease in high risk-environments, and (c) a crossover interaction with the wild-type allele posing no increased or decreased risk.
