Q. The tRNA anticodon 3-UAC-5 will pair with the mRNA codon : (a) '5-AUU-3' (b) '5-UAC-3' (c) 5'-AUG-3' (d) 3'-GUA-5' Solution : Correct option : C The codon is a…
Q. Lactose (Lac) Operon is regulated by : (a) Lac repressor only (b) Lac repressor and CAP-cGMP complex (c) Lac repressor and CAP-cAMP complex (d) CAP-cAMP and CAP-cGMP complex Solution…
Q. In sea urchin DNA, which is double stranded, 17 % of the bases were shown to be cytosine. The percentages of the other three bases expected to be present…
Q. Gene regulation governing lactose operon of E.coli that involves the lac I gene product is : (a) Feedback inhibition because excess of β-galactosidase can switch off transcription. (b) Positive and inducible because…