Bayanin kwayoyin halitta an sanya shi a cikin jerin kwayoyin halittar kwayoyin halitta, wanda ake kira nucleotides. An tsara bayanan kwayoyin halitta a cikin jerin kwayoyin halittar kwayoyin halitta, wanda ke samar da DNA, kamar yadda jerin haruffa a cikin kalmomi ke dauke da bayanai a shafi. Kwayoyin halitta kamar gajerun umarni ne da aka gina daga "haruffa" na haruffan DNA. Idan aka haɗa su tare, dukkanin waɗannan kwayoyin suna ba da isasshen bayani don zama "littafin koyarwa" na yadda za a gina da kuma gudanar da kwayoyin halitta. Ana iya canza umarnin da wannan haruffan DNA ya tsara, duk da haka, ta hanyar maye gurbi, kuma waɗannan umarnin na iya canza abubuwan da ake ɗauka a cikin kwayoyin halitta. A cikin sel, ana ɗaukar kwayoyin halitta a cikin chromosomes, waɗanda suke ɗaukar DNA. Yana da sake sakewa na chromosomes wanda ke haifar da haɗuwa na musamman na kwayoyin halittar kwayoyin halitta a cikin zuriya, wanda ke samar da DNA.
ba zato ba tsammani