Module 3

Question 1

What do promoters do?

Answer 1

regulate genes through interactions with proteins, RNA polymerase binds a protomers to initiate transcription

Question 2

What sigma binds during good nutrion?

Answer 2

Sigma D

Question 3

What sigma binds under poor nutrition?

Answer 3

Sigma C

Question 4

What is the step process for bacteria good nutrition?

Answer 4

Sigma D, housekeeping genes, growth cell division

Question 5

What is the step process for bacteria bed nutrition?

Answer 5

ppGpp and Sigma s, stress genes, maintenance

Question 6

What does ppGpp do?

Answer 6

Reduces housekeeping genes transcriptions and increases stress genes transcription

Question 7

What happens if sigma binds to - 10 complex?

Answer 7

Tight/closed complex

Question 8

What happens if sigma binds to - 35 complex?

Answer 8

Open complex

Question 9

What do enhancers do?

Answer 9

Precise control of gene regulation,

Question 10

How does insulin regulation work?

Answer 10

If food is present, DAF-16 is kept out of the cell and if not DAF-16 is allowed in.

Question 11

What does siRNA do?

Answer 11

Leads to transcrition degradation

Question 12

What does miRNA do?

Answer 12

Blocks translation

Question 13

What is the difference between SpoT and RelA?

Answer 13

SpoT glucose starvation, ReLA amino acid starvation