In the presence of galactose,you unexpectedly find that transcription is still blocked.Assuming Gal80 is present and functional,which other protein may be mutated to prevent transcriptional activation?
A)Gal2
B)Gal3
C)Gal4
D)Mig1
E)Gal10

Question

Quizplus · Accepted Answer

Gal3 is responsible for sensing galactose and interacting with Gal80 to relieve its inhibition on Gal4, allowing transcription. If Gal3 is mutated, this process is disrupted, preventing transcriptional activation.

In the Presence of Galactose,you Unexpectedly Find That Transcription Is