AFZOISHI JINSI

Afzoishi jinsi ahamiyati kaloni tahavvuloti doshta, nisbat ba afzoishi gayrijinsi bartari dorad. Zero genotipi naslho dar natijai omezish (kombinatsiya)-i genhoi volidon ba vujud meoyad. Dar natija qobiliyati mutobiqati naslho ba sharoiti gunoguni muhit ziyod shuda, onho nisbat ba volidoni khud dar muboriza bahri hayot bartari paydo mekunand. Hangomi afzoishi jinsi omezishi navi genho ba vujud omada, baroi fardho dar sharoiti navi zist imkoniyati beshtari mutobiqatro faroham meovarad.

Ba vujud omadani omezishi genhoi nav samara va surati mutobiqati namudhoro ba sharoiti tagyiryobandai muhit metezonad. Mohiyati afzoishi jinsi dar on ast, ki yakjoyashavii mavodi irsi dar naslho, az hisobi akhbori genetiki du sarchashmai gunogun, yane volidon, amali meshavad.

Dar hayvonot va rastanihoi dujinsa mutobiqate hast, ki khudbordorshaviro bozmedorad. Dar pahnkirmho va halqakirmho (planariya va kirmi loykhurak) juftshavi dar bayni fardhoi gunogun meguzarad. Dar nabotot khudbordorshavi dar rastanihoi yakjinsa ba mushohida merasad. Agar gulhoi dujinsa inkishof yoband, pas hangomi rasidan, gardbarg va mevabarg az hamdigar farq mekunand. Dar chunin holat gardoludshavi dutarafa meguzarad.