MCQ
The $\text{RNA}$ polymerase holoenzyme transcribes:
- ✓The structural gene and the terminator regions.
- BThe structural gene only.
- CThe promoter, and the.
- DThe promoter, structural gene and the terminator region.
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$(A)$ The earliest organisms that appeared on the earth were nongreen and presumably anaerobes.
$(B)$ The first autotrophic organisms were the chemoautotrophs that never released oxygen.Of the above statements which one of the following options is correct?