Answer:
The correct answer is option E. "nucleotides can only be added to an available 3'-OH group on the transcript terminus".
Explanation:
RNA synthesis is catalyzed by an enzyme called RNA polymerase. RNA polymerase always catalyze the synthesis of new RNA from 5' to 3' because nucleotides can only be added to an available 3'-OH group on the transcript terminus. This has been confirmed in labeling experiments with γ-32P substrates which establish the presence of a triphosphate moiety in transcripts with either pppG or pppA.
Compositional layers are determined by their components, while mechanical layers are determined by their physical properties.
Answer:
The answer is option 1 about 70% of total global carbon is found in oceans.
Explanation:
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Because the Epiglottis covers the Larynx