What will be the binding status of regulatory proteins in lac operon when concentrations of both lactose and glucose are very low in the culture medium?
A. Only the repressor remains bound to the operator
B. Only the cyclic AMP-Catabolic Activator Protein (cAMP-CAP) complex remains bound to the CAP binding site
C. Neither the repressor nor cAMP-CAP complex remain bound to their respective binding sites
D. Both the repressor and cAMP-CAP complex remain bound to their respective binding sites
Answer: Option D
This Question Belongs to Biotechnology Engineering >> Molecular Tools In Biotechnology
Expression of hundreds of different genes in DNA microarray technology is monitored by using
A. Radioactive probe
B. Visible chromogenic probe
C. UV absorbing probe
D. Fluorescent probe
A. Transcriptionally controlled
B. Post-transcriptionally controlled
C. Translationally controlled
D. Post-translationally controlled
Which one of the following techniques/tools is not used for inserting a foreign gene into a cell?
A. DNA microarray
B. Electroporation
C. Gene gun
D. Microinjection
A. Polymerase chain reaction
B. DNA microarray
C. Northern hybridization
D. Southern hybridization
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