RNA (Asidi ya Ribonucleic)
(Ona pia Chembe za Urithi [DNA])
inavyohusika katika kutengeneza protini: lf 18-19; g99 9/8 6, 8-9; ct 46
molekuli tata inayoitwa RNA (ribonucleic acid): g 11/11 6
nadharia ya kwamba uhai ulitokana na RNA (mageuzi ya kemikali): lf 5-6; ct 48