recessive gene. recessive gene in Medicine. recessive gene n. A gene that is phenotypically expressed in the homozygous state but has its expression masked in the presence of a dominant gene.
Environmental law. For other uses, see Environmental Law (disambiguation). Environmental law - or environmental and natural resources law - is a collective term describing the network of treaties, statutes, regulations, common and customary laws addressing the effects of human activity on the natural environment. The core environmental law regimes address environmental pollution.
United States Environmental Protection Agency (EPA) - Laws and Regulations The mission of EPA is to protect human health and to safeguard the natural environment -- air, water and land -- upon which life depends. A number of laws serve as EPA's foundation for protecting the environment and public health.