"Muhawarar a bude take ! »
- Ta yaya kwakwalwar ta shafi hali?
- Shin yanayi zai iya canza kwayar kwayar halitta tare da yada wasu halaye da aka samu ta hanyar tsararraki ??
- Abinda ke ciki: Mene ne tasirin yanayi da al'ada akan tsarin halittu, musamman a cikin kwakwalwa?
- Ta yaya waɗannan halayen halayyar zasu iya zama?
- Yaya za a iya samar da kwayoyin kwayar cutar namiji, watau kwayoyin halitta, ta hanyar yanayi don a yada wasu dabi'un da aka samu ta zamani?
Kowane ɗayanmu an ƙaddara ta kwayoyinmu, mun sami gado na iyaye da kuma na kwayoyin mata (...), a gaskiya mun kasance fiye da kwayoyinmu, mun kasance hade da kwayoyin da abubuwan da ke cikin muhalli suke shafar, kuma su ne da yawa: rayuwarmu, halayyarmu, ilimin kimiyya ...