Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

5. CsCl gradient

Explanation:

In the following procedure, centrifugation is done on a CsCl gradient, the DNA separate out at a point when density equals that of the salt solution.

¹⁵NH₄Cl was used as a heavy isotope of ammonium chloride while, ¹⁴NH₄Cl was used as the light isotope of ammonium chloride & the type of centrifugation used was density gradient centrifugation in a CsCl medium.