A scientist uses radioactive isotopes to label a double-stranded molecule 4 points
of DNA. The...
A scientist uses radioactive isotopes to label a double-stranded molecule 4 points
of DNA. Then the DNA undergoes replication in a non-radioactive
medium. Where are the two original radioactive strands of DNA?
O
a. Both strands are intact, and both are part of the same molecule of DNA.
b. Both strands are intact, and each is part of a different molecule of DNA.
c. One strand is intact, while the other strand is broken apart and distributed among
the new DNA molecules.
d. Both strands are broken apart, and their pieces are distributed among the new DNA
molecules.
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