DNA from Salmonella species, when digested with the restriction enzyme Xba I, gives around 15 fragments ranging from 25 kb to 680 kb This pattern of fragments, or ‘fingerprint’, is unique to that strain. If the same fingerprint is found from bacteria from other infected people, then it can be assumed that they were all infected from a common source. Thus, by comparing their eating habits, food sources, etc. the source of the infection can be traced to a restaurant, food item. The fingerprints are created and analysed by

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#Question id: 3020

#Part-B Specialized Branches in Biotechnology

During which phase of the bacterial growth curve does the total number of viable cells decline?

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#Question id: 18382

#Part-A Aptitude & General Biotechnology

Which bacterial enzyme has been transferred to Arabidopsis thaliana which can absorb mercury, and it reduces to volatile Hg from the leaf surface. 

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#Question id: 18740

#Part-A Aptitude & General Biotechnology

There are various methods to distinguish whether a colony contains a recombinant or not. One such method is __________

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#Question id: 11612

#Part-B Specialized Branches in Biotechnology

AMO-1618, which blocks GA biosynthesis at the cyclization step, what would be the A, B and C represents. where, the control shows no inhibitor;

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#Question id: 11288

#Part-B Specialized Branches in Biotechnology

Below is a table showing the number of species and actual food web links observed in three different ecosystems. By calculating connectance as a measure of relative complexity of food webs, which of the following ecosystem are more complex?