Calculate the heat of formation of benzene from the following data, assuming no resonance. Bond energies :

C – C = 83 kcal = 140 kcal C – H = 99 kcal

Heat of atomisation of C = 170 .9 kcal

Heat of atomisation of H = 52.1 kcal

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#Question id: 13045

#XL - S Microbiology

Maxam Gilbert DNA sequencing causes cleavage of DNA based on:

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#Question id: 13046

#XL - S Microbiology

Aminopetrin inhibits :

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#Question id: 13067

#XL - S Microbiology

The first immunoassay formats described were methods based on the ____ reaction, which is characterised either by gel formation in a liquid phase or as an opaque band in an agar plate assay.

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#Question id: 13068

#XL - S Microbiology

Coating antibody; which actively traps antigen

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#Question id: 13069

#XL - S Microbiology

A negative agglutination test may NOT indicate the

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#Question id: 13071

#XL - S Microbiology

Modifications of the agglutination reaction involve the use of ________particles, which allow the reaction to be observed more easily in the liquid phase