"1998 in technology" . "Molecular biology techniques" . "Biotechnology" . "DNA" . "DNA sequencing" . "Safety" . "1970 introductions" . "1970 in biotechnology" . "1970 in biology" . "Biosafety level 4 laboratories" . "Genetic mapping" . "Molecular biology" . "1970 in science" . "Biological hazards" .