#Question id: 14771
#Section 1: Engineering Mathematics
#Question id: 15877
#Section 6: Plant, Animal and Microbial Biotechnology
#Question id: 4152
#Section 3: Genetics, Cellular and Molecular Biology
The pathway for polypeptides exported from E. coli includes the following steps, which occur in what order for correct export?
1. A chaperone, SecA, binds to the polypeptide.
2. A chaperone, SecB, binds to the polypeptide.
3. ATP is hydrolyzed by Sec A.
4. SecA pushes 20 amino acids of the polypeptide into the translocation complex.
#Question id: 561
#Section 2: General Biology
Enzyme X exhibits maximum activity at pH = 6.9. X shows a fairly sharp decrease in its activity when the pH goes much lower than 6.4. One likely interpretation of this pH activity is that:
#Question id: 65
#Section 2: General Biology
Identify which of the following pair is enantiomers, diastereomers or meso compounds.