Question

What level of gene expression is regulated by such factors as Notch1, GATA-2 and Bmi-1?

1) Replication
2) Transcription
3) RNA processing
4) Translation
5) None of the above

Answer 1

Gene expression is regulated at the transcriptional level by factors such as Notch1, GATA-2, and Bmi-1 which is one of the multiple levels at which gene expression can occur.

Step-by-step explanation:

The level of gene expression regulated by factors such as Notch1, GATA-2, and Bmi-1 is the transcriptional level. Gene expression can be regulated at multiple stages, from the loosening of DNA from nucleosomes for transcription factor binding, known as the epigenetic level, to the transcription of RNA, through to the processing, transport, translation into protein, and even after the protein has been created, which are post-translational modifications.

Hence, the correct answer in this context is 2) Transcription.