#Question id: 870
#Unit 1. Molecules and their Interaction Relevant to Biology
Choose correct statements about ‘Protein Disulfide Isomerase’ in protein folding
A. Oxidized PDI catalyzes the rearrangement of a polypeptide’s non-native disulfide bonds via disulfide interchange reactions to yield native disulfide bonds.
B. Reduced PDI catalyzes the initial formation of a polypeptide’s disulfide bonds through the formation of a mixed disulfide.
C. Protein disulfide isomerase contains the conserved active site motif of Cys-Xaa-Xaa-Cys found in thioredoxin and shares a similar role to the Dsb family of proteins found in E. coli.
D. Under more reducing conditions with thiols in the active site the enzyme reshuffles disulfides (isomerase) in target proteins.
#Question id: 4014
#Unit 3. Fundamental Processes
Operator constitutive mutants of the lac operon would
#Question id: 14499
#Unit 13. Methods in Biology
#Question id: 4536
#Unit 3. Fundamental Processes
The human b-interferon gene is activated in cells upon viral infection through some activators, EXCEPT one
#Question id: 5464
#Unit 8. Inheritance Biology
Two varieties of maize averaging AABBCC (200 inch) and aabbcc (80 inch) in height, respectively, are crossed. The F1 progeny is quite uniform averaging 140 inches in height allowed to self fertilization. If height is control by 3 pair of polygene, what is the height of following genotype of F2 plant?
I- AaBBCC II- aaBbCC III- aabbCc