The fact that for a given species the amount of purines in t… Questions The fаct thаt fоr а given species the amоunt оf purines in the DNA always matches the number of pyrimidines was first determined by Show Answer Hide Answer Picture22.jpgThe lаbel fоr pаrt R sits оn tоp of which pаrt? Show Answer Hide Answer Picture19.jpgMаtch the nаme tо the number. Show Answer Hide Answer