#Question id: 2677
#Unit 2. Cellular Organization
Why is the transcription of structural genes of the trp operon turned off in the presence of tryptophan?
#Question id: 4039
#Unit 3. Fundamental Processes
Which of the following statements is true about a lac operon with this genotype?
I-d O+ Z+ Y- A- ___
#Question id: 10167
#Unit 6. System Physiology – Plant
Mechanisms of C4 acid transported mesophyll → bundle sheath for decarboxylation, which of the following CORRECT combination of decarboxylation process?
a.) NADP–malic enzyme (NADP–ME)→ transport Malate from mesophyll to bundle sheath
b.) NAD–malic enzyme (NAD–ME)→ transport Aspartate from mesophyll to bundle sheath
c.) PEP carboxykinase (PEPCK)→ transport Aspartate from mesophyll to bundle sheath
d.) PEP carboxylase (PEPCase)→ transport Malate from mesophyll to bundle sheath
#Question id: 27422
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 707
#Unit 1. Molecules and their Interaction Relevant to Biology
A repeating structural unit in a multimeric protein is known as a(n):