Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Genome rechinhu chipenyu chakapiwa rine zviuru zvemajini, asi haasi magene ose aya anofanira kuva anoshanda panguva ipi neipi. Gene rinoratidzwa apo riri kunyorwa kuva mRNA uye kune nzira dzakawanda dzamasero dzokutonga kuratidzwa kwemajini zvokuti mapuroteni anogadzirwa bedzi apo anodikanwa nesero. Zvinhu zvinoshandura mashoko ndiwo mapuroteni anobata DNA, zvichibatsira kana kuti kudzivisa kunyorwa kwegene. Somuenzaniso, mugenomu rebhakitiriya rinonzi Escherichia coli, mune majini anoverengeka anodiwa pakugadzira amino acid inonzi tryptophan. Zvisinei, kana masero ava kutokwanisa kuwana tryptophan, majini aya anoita kuti tryptophan igadziriswe haachadiwi. Kuvapo kwe tryptophan kunopesvedzera zvakananga kushanda kwemajini <unk> mamorekuru e tryptophan anosunga kumudzvinyiriri we tryptophan (chinhu chinonyora), achichinja chimiro cheudzvinyiriri zvokuti mudzvinyiriri anosunga kumajini. Tryptophan repressor inovhara kunyorwa uye kutaura kwemajini, nokudaro ichigadzira kudzora kwakashata kwegadziriro ye tryptophan synthesis.  Mubvunzo: Genome ine majini mangani?
zviuru