The lag phase of the bacterial growth curve is marked by

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#Question id: 18601

#Part-A Aptitude & General Biotechnology

The chances of killing a bird are 1 in three attempts. Find the probability that no bird is killed in 3 attempts.

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#Question id: 18680

#Part-A Aptitude & General Biotechnology

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: 5252

#Part-A Aptitude & General Biotechnology

Which type(s) of genetic transfer lead to incorporation of new DNA into the bacterial chromosome?

I. Conjugation mediated by F factor

II. Hfr mediated conjugation

III. Transduction

IV. Transformation

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#Question id: 887

#Part-A Aptitude & General Biotechnology

Polypeptides fold rapidly by a stepwise process, how does the polypeptide chain arrive at its native conformation?

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#Question id: 5245

#Part-A Aptitude & General Biotechnology

Which method of gene transfer involves direct contact between the bacteria?