During change of O2 to O₂^2- ion, the electron adds on which of the following orbitals?

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#Question id: 5271

#XL - S Microbiology

Gene transfer that requires cell-to-cell contact is

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#Question id: 3054

#XL - S Microbiology

A pure culture in exponential growth phase has a bacterial concentration of 6.4 x 10^8 cells/ml. If the bacterium has a generation time of 1 h, how long ago was the cell concentration 8.0 x 10^7 cells/ml?

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#Question id: 27649

#XL - U Food Technology

Bacterial ropiness in milk is caused due to

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#Question id: 10950

#XL - T Zoology

Presentation of antigen on MHC-I by a cell will result in

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#Question id: 546

#XL - R Botany

Enzymes are potent catalysts because they: