Matsayi: Halin halittar mutum ya samo asali ne daga duka nau'in halittarsa da kuma tasiri daga yanayin da ya rayu. Wani ɓangare mai mahimmanci na bambancin phenotypic a cikin yawan jama'a yana haifar da bambancin genotypic. Halin juyin halitta na zamani ya bayyana juyin halitta a matsayin canji a tsawon lokaci a cikin wannan bambancin kwayoyin halitta. Yawan wani allele zai zama mafi yawa ko žasa da sauran nau'o'in wannan kwayar halitta. Bambancin ya ɓace lokacin da sabon allele ya kai ga ma'anar gyara<unk> lokacin da ya ɓace daga yawan jama'a ko kuma ya maye gurbin allele na kakanninsu gaba ɗaya. Zaɓin halitta zai haifar da juyin halitta ne kawai idan akwai isasshen nau'in kwayoyin halitta a cikin yawan jama'a.
bambancin genotypic