If gene expression control occurs during transcription, when did it occur?

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false

Can someone give me the answers to this?

Unlike mendel's pea plants,humans can have a variety of heights,not just tall or short.what does this mean for human height? a.height is controlled by one gene b.height is controlled by more than one c.height is not genetic d.height is solely determined by whether or not you eat your vegetables