Which of the following takes place when tryptophan levels are high?
(a) Attenuation at the attenuator structure formed by sequences of 3 and 4
(b) Ribosomes pauses at the Try codons in sequence 1
(c) Formation of paired structure between 2 and 3 sequences prevents attenuation
(d) 2:3 structures, unlike the 3:4 attenuator, does not prevent transcription
This question was addressed to me by my school principal while I was bunking the class.
Query is from Regulation of Gene Expression in Prokaryotes topic in section Regulation of Gene Expression and Miscellaneous of Biochemistry