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: 18517

#XL - R Botany

Alkaloids emetine and cephaeline are obtained from 

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#Question id: 1760

#XL - Q Biochemistry

Effector memory T-cells can be distinguished from the central memory T-cells from which they arise by:

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#Question id: 12729

#XL - S Microbiology

When the two antiparallel strands of DNA are held together partly by the weak forces between complementary bases and partly by hydrophobic interaction between adjacent , stacked base pairs termed as_____

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#Question id: 2050

#XL - S Microbiology

Which of the following statements is NOT TRUE?

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#Question id: 5154

#General Aptitude

476**0 is divisible by both 3 and 11. The non zero digits in the hundred’s and ten’s places are respectively