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: 2623

#SCPH01 Biochemistry

Combinatorial control is a characteristic feature of ;

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#Question id: 23198

#SCPH06 I Botany

The commonly used heavy metals in staining for electron microscopy are.

1. Uranium

2. Gold

3. Lead

4. Osmium

5. Platinum

Which of the following option has correct combination?

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#Question id: 2322

#SCPH06 I Botany

The gelatinous fluid inside the nucleus is called

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#Question id: 5049

#SCPH28 | Zoology

The fundamental notion of a stem cell is that it can make more stem cells while also producing cells committed to undergoing differentiation. This process is called as-

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#Question id: 27692

#Research Methodology

Research is an organized and systematic enquiry” Defined by