If air consists of 77% by weight of nitrogen and 23% by weight of oxygen calculate:

(i) the mean molecular weight of air,

(ii) the mole fraction of oxygen,

(iii) the concentration of oxygen in mole/m3 and kg/m3  if the total pressure is 1.5 atmospheres and the temperature is 25 °C.

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#Question id: 17210

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

which one of the following tools can reliably establish an evolutionary link between two proteins and align them even if they share very low degree of sequence similarity?

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#Question id: 1176

#Section 3: Genetics, Cellular and Molecular Biology

The EGF receptor is a(n):

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#Question id: 14749

#Section 5: Bioprocess Engineering and Process Biotechnology

For a turbine aeration agitation, the power consumption 

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#Question id: 27242

#Section 3: Genetics, Cellular and Molecular Biology

The chromosomal DNA complexes with

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#Question id: 15168

#Section 6: Plant, Animal and Microbial Biotechnology

Cyanobacteria comprises a large and morphologically heterogenous group of