A) two bands is CsCI
B) one bands is CsCI
C) three bands is CsCI
D) four bands is CsCI
Correct Answer: A
Solution :
Two bands in CsCl. The isolated DNA would show one band corresponding to intermediate DNA of 15N and 14N DNA strands and one bond corresponding to 14N DNA as this pattern could only have been observed if each DNA molecule contains a template strand from the parent DNA thus showing semi conservative DNA replication.
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