sarahsmiles9163 sarahsmiles9163

01-04-2024
Biology

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E. coli bacteria grew in ¹⁵NH₄Cl medium for several generation are allowed to grow in ¹⁴NH₄Cl medium. After 2 generations, the bacteria are isolated from the medium and DNA of bacteria centrifuged in CsCl. The result of the density gradient consists of DNA that is

A. Only hybrid DNA.
B. Both hybrid and light DNA.
C. Both hybrid and heavy DNA.
D. Both heavy and light DNA.

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