You are studying a new strain of E. coli that can utilize the disaccharide melibiose very efficiently. You find that utilization depends on the enzyme melibiase, which is encoded by the gene Mel1. Mel1 is not expressed unless melibiose is present in the growth medium.

Next, you isolate a third mutant, MelC–, which gives constitutive melibiase expression. The MelC– mutation is closely linked to Mel1 and MelB–. Genetic tests of the MelC– mutation yield the following:

 

As above, classify the MelC– mutation in terms of its basic genetic properties and explain how you arrived at your conclusions.

TLS Online TPP Program

#Question id: 17271

#SCPH01 Biochemistry

Electrophoretic resolution can be mainly change by changing the

TLS Online TPP Program

#Question id: 17271

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

Electrophoretic resolution can be mainly change by changing the

TLS Online TPP Program

#Question id: 17271

#SCPH05 I Biotechnology

Electrophoretic resolution can be mainly change by changing the

TLS Online TPP Program

#Question id: 17271

#SCPH06 I Botany

Electrophoretic resolution can be mainly change by changing the

TLS Online TPP Program

#Question id: 17272

#SCPH01 Biochemistry

We need to minimum buffering capacity is required so that the pH value of the samples analyzed does not have any influence on the system, 

What would happen if we used the higher buffering concentration

a) more electric power is applied, resulting in higher heat development. 

b) less electric power for less time  is applied, resulting in very high  heat development

c) higher buffering concentration need more electric power resulting increases in the temperature will increase the mobility and rate of migration of ions.

d) using the higher buffering concentration shows no affect at all

TLS Online TPP Program

#Question id: 17272

#SCPH06 I Botany

We need to minimum buffering capacity is required so that the pH value of the samples analyzed does not have any influence on the system, 

What would happen if we used the higher buffering concentration

a) more electric power is applied, resulting in higher heat development. 

b) less electric power for less time  is applied, resulting in very high  heat development

c) higher buffering concentration need more electric power resulting increases in the temperature will increase the mobility and rate of migration of ions.

d) using the higher buffering concentration shows no affect at all