E. coli cells grown on 15N medium are transferred to 14N medium and allowed to grow for two more generations (two rounds of DNA replication). DNA extracted from these cells is centrifuged. What density distribution of DNA would you expect in this experiment?

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#Question id: 18672

#Unit 13. Methods in Biology

Larger DNA fragments up to 2 × 10 ³ kb can be separated by using

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#Question id: 18673

#Unit 13. Methods in Biology

A person is suffering of bacterial food-borne illness from Salmonella infections which particularly useful in identifying the course of outbreaks

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#Question id: 18674

#Unit 13. Methods in Biology

Electrophoresis of normal RNA can be achieved by using

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#Question id: 18675

#Unit 13. Methods in Biology

Which of the following is the example free solution electrophoresis

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#Question id: 18676

#Unit 13. Methods in Biology

which of the following technique can be analysed hybridisation probes,  gene-cloning use as primers for DNA sequencing,  the polymerase chain reaction (PCR), use in site-directed mutagenesis and use as antisense therapeutics

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#Question id: 18677

#Unit 13. Methods in Biology

Point mutations in DNA, such as occur in a range of human diseases, can be identified by