Some breeds of beef cattle have two color options, red and black, where the black version of the gene (B) is dominant over the red version (b). The different forms of the beef cattle color gene are called ___.

Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide