Suggest a technique to a researcher who needs to separate fragments of

1.	Suggest a technique to a researcher who needs to separate fragments of DNA.
Answer» fragments of DNA can be separated using the technique called Gel Electrophrisis here ,DNA molecules are separated using electric filed DNA beng nagatively charged moves towards anode through a matrix.

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(i) Arrange the following compounds in an increasing order of basic strength : `C_(6)H_(5)NH_(2), C_(6)H_(5)N(CN_(3))_(2), (C_(2)H_(5))_(2)NH and CH_(3)NH_(2)` (ii) Arrange the following compounds in a decreasing order of `pK_(b)` values: `C_(2)H_(5)NH_(2), C_(6)H_(5)NHCH_(3), (C_(2)H_(5))_(2) NH and C_(6)H_(5)NH_(2)`
Rerrange the following in an increasing order of their basic strengths: `C_(6)H_(5)NH_(2),C_(6)H_(5)N(CH_(3))_(2),(C_(6)H_(5))_(2)` NH and `CH_(3)NH_(2)`.
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Suggest a technique to a researcher who needs to separate fragments of DNA.

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