trp operon

Question 1

how many operons code for the proteins to make trp

Answer 1

one operon

Question 2

what is the order on the operon of components

Answer 2

I P RO LA G

Question 3

what is tryptophan an inducer or corepressor

Answer 3

corepressor

Question 4

what is the process called where transcription is repressed after the leader in the presence of tryptophan

Answer 4

attenuation

Question 5

attenuation:

high trp

low trp

Answer 5

attenuation occurs

leader operon can still occur, no attenuation

Question 6

does attenuation occur in eukaryotes

Answer 6

no

Question 7

what step loop occurs when trp is high

what step loop occurs when trp is low

Answer 7

3-4

2-3

Question 8

where are the TRP codons (to make it) located within the stem loop

what does this mean

Answer 8

present in region 2

without access to it, you cannot make trp

Question 9

what is exposed in the 3-4 attentuation loop for the trp codon that the ribosome goes over

Answer 9

3-4 loop exposes stop codon and translation is halted

Question 10

11 subunits can bind one TRP on this protein

what happens when it is fully saturated (what does it bind to and what does it form)

Answer 10

TRAP

binds to the 5’ leader and forms terminator hairpin

Question 11

when uncharged trp trna is high, ___ is high and this ___ binding to the leader

Answer 11

anti trap

inhibits

Question 12

high trp, high ____, ___ production

low trp, high ____, ___ production

Answer 12

high trap, ceases production

high anti trap, encourages production