Escherichia coli preferentially utilizes glucose by preventing the uptake of lactose and switching off transcription of the lac operon. This mechanism is known as 

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#Question id: 4318

#SCPH28 | Zoology

Which of the following statements correctly describes a characteristic of tumor-suppressor gene?

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#Question id: 3642

#SCPH05 I Biotechnology

Any piece of DNA which replicates as a single unit is called

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#Question id: 4817

#SCPH28 | Zoology

How many different gametes can be formed by an organism with genotype AaBbCCddEe, If a, b and c gene are completely link?

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#Question id: 12750

#SCPH28 | Zoology

Bacterial culture was treated with SDS and NAOH then centrifuged, supernatant was decanted and treated with potassium acetate and centrifuged to get a pellet. What is the composition of the pellet?

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#Question id: 4132

#SCPH05 I Biotechnology

In E. coli, aminoacyl-tRNA synthetases: