Question

If a mutation in UASg prevents Gal4 from binding, a possible consequence is:

Answer 1

Answer:

Option B.

Transcription will be silenced.

Explanation:

Gal4 is a transcription factor that regulate gene expression in a positive way. It is a year protein that regulates gene induced by galactose. It lies upstream of the activating sequence and activate them. It binds to 17 basepair sites of the upstream activating sequence(UAS). If USAg prevents Gal4 from binding, transcription will be silenced.