Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences within a prokaryotic genome. If a researcher moves the promoter for the lac operon to the region between the beta galactosidase (lacZ) gene and the permease (lacY) gene, which of the following results would be most likely?

#Question id: 10283

#SCPH05 I Biotechnology

How to Phosphofructokinase-1 (PFK-1) and Fructose 1,6-Bisphosphatase are reciprocally regulated ?

a) ATP inhibits PFK-1 by binding to an allosteric site and lowering the affinity of the enzyme for its substrate fructose 6-phosphate

b) citrate is also an allosteric regulator of PFK-1, high citrate concentration increases the inhibitory effect of ATP

c) FBPase-1, is strongly inhibited (allosterically) by AMP; when the cell’s supply of ATP is low (corresponding to high AMP), the ATP-requiring synthesis of glucose slows

d) AMP inhibits PFK-1 by binding to an allosteric site and lowering the affinity of the enzyme for its substrate fructose 6-phosphate

Which of the following statements of regulation of enzyme is correct?

#Question id: 830

#SCPH01 Biochemistry

The polypeptide can assume with each point on it corresponding to a specific conformation, number of different conformations can assume with that energy, A folding protein must contain

#Question id: 11963

#I Life Science/ Life Sciences Group – I-V

#Question id: 11590

#SCPH06 I Botany

Seed germination may require gibberellins for one of several possible steps:

#Question id: 14344

#SCPH05 I Biotechnology