Enhancers are eukaryotic DNA sequences that can be used to elevate transcription and have variable positions and orientations.
The answer to this question would be A:growth factors
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<span>If Noam chooses a filter, it might be more effective than a screen. After using it for a while, though, he will have to replace it, which could be expensive. A screen might be less effective, but it can be cleaned instead of replaced.</span>
Answer:
The last one does not happen meiosis create four genetically different haploid cells