國立臺灣大學農藝學系Wang, Yue-WenYue-WenWang2006-09-282018-07-112006-09-282018-07-112000http://ntur.lib.ntu.edu.tw//handle/246246/20060928155400651. Oncogenesis may be due to: a. Spontaneous genetic changes, such as spontaneous gene or chromosome mutations. b. Exposure to mutagens or radiation. c. The action of genes introduced by tumor viruses.application/ppt2045952 bytesapplication/vnd.ms-powerpointzh-TW[SDGs]SDG3learning objecthttp://ntur.lib.ntu.edu.tw/bitstream/246246/2006092815540065/1/0ch18.ppt