The DNA fragments separated on an agarose gel can be visualised after staining with : (1) Acetocarmine (2) Aniline blue (3) Ethidium bromide (4) Bromophenol blue Answer : (3) Ethidium bromide...
What is the criterion for DN A fragments movement on agarose gel during gel electrophoresis ? (1) The smaller the fragment size, the farther it moves (2) Positively charged fragments move to farther ... Negatively charged fragments do not move (4) The larger the fragment size, the farther it moves Answer : (1) The smaller the fragment size, the farther it moves...
Electrophoresis is mainly used for: (a) Differentiate the biological sample (b) To perform the human specific presumptive tests (c) DNA isolation from biological material (d) Separates the molecules Answer : Ans: (d). Separate the molecules...
11. Gel electrophoresis is used for a) Construction of recombinant DNA by joining with cloning vectors b) Isolation of DNA molecules c) Cutting of DNA into fragments d)Separation of DNA fragments according to their size Answer : d)Separation of DNA fragments according to their size...
4. The DNA fragments produced by the use of restriction endonucleases can be separated by (a) polymerase chain reaction (b) gel electrophoresis (c) density gradient centrifugation (d) any of the above. Answer : gel electrophoresis...
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