Shin a ƙarshe masana kimiyya sun canza tsohon ilimin yadda ake canza DNA na ɗan adam?
Ɗaya daga cikin manyan ginshiƙai na tsohuwar ka'idar 'yan sama jannati ita ce, ƙila tsoffin halittu sun yi wa DNA ɗin ɗan adam da sauran nau'ikan rayuwa. Zane-zane na d ¯ a da yawa sun bayyana suna nuna…