Auxotroph culture (His- and Lac-) culture of E. coli was mutagenised. On what media would one spread the mutagenised cells to select prototroph for both His+  and Lac+ cells?

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#Question id: 19456

#13. Methods in Biology

Phase contrast, dark field microscopy are all light microscopy. These microscopes have their limit of resolution upto

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#Question id: 10585

#10. Ecological Principles

Per capita birth rate of this population is b and per capita death rate of population is d, N is a population size. What is yield of population per unit time as?

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#Question id: 23447

#Aptitude

You are walking down the street and suddenly you see two hundred rupee notes on the pavement. What action will you take?

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#Question id: 23505

#Aptitude

Which one of the following non-conventional energy sources can be exploited most economically?

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#Question id: 12590

#10. Ecological Principles

Species introduced to new geographic locations