Chilengedwe chikawonongeka, biotechnology ingagwiritsidwe ntchito kuteteza chilengedwe kuti zisawonongeke. Biology ndiyokhazikika kwambiri ndipo imatha kuthetsa magwero apadera oyipitsa. Mwachitsanzo, sitima yapamadzi yonyamula mafuta osapsa imaipitsa nyanja ndi mafuta ochulukirapo chifukwa cha ngozi. Mitundu yapadera ya tizilombo toyambitsa matenda yomwe imawola mafuta olemera kwambiri imagwiritsidwa ntchito kuwononga mafuta olemerawo ndi kuwapanga kukhala ma acid afupiafupi ovomerezeka ndi chilengedwe kuti athetse kuipitsidwa. Kuonjezera apo, ngati nthaka yaipitsidwa ndi zitsulo zolemera, zomera zinazake zitha kugwiritsidwanso ntchito kutenga malo oipitsa.