When I was 15 years old I got my first job at Burger King. This was the summer between my Sophomore and Junior year of high school. Literally the second day on the job, a woman and her three kids pulled up in the drive through. Still being naive and thinking everyone was a good person, I happily greeted them.
2 years ago. The difference between positive and negative control over transcription is that positive control promotes transcription and increases the frequency of initiation of transcription while negative control of transcription prevents the initiation of transcription and acts a repressor when glucose is present.
Feedback Control of Hormone Production. Feedback circuits are at the root of most control mechanisms in physiology, and are particularly prominent in the endocrine system. Instances of positive feedback certainly occur, but negative feedback is much more common. Negative feedback is seen when the output of a pathway inhibits inputs to the pathway.