Radioactivity of the daughter dna molecules

Reference no: EM1386175

A DNA molecule has the sequence shown below. The original DNA does not contain any radioactive labels. The DNA molecule is permitted to replicate in a solution containing all four unlabeled deoxyribonucleoside tripohosphates and deoxyadenosine triphospage that is labeled with 32P.

5'-TTTTTTTTTTTTTTT-3'

3'-AAAAAAAAAAAAAAA-5'

Which statement best explains the radioactivity of the daughter DNA molecules after replication occurs.

1. Both strands of both daughter molecules will be radioactive

2. One strand of each daughter molecule will be radioactive and the other strand of each daughter molecule will not be radioactive.

3. One strand of one daughter molecule will be radioactive and the other daughter molecule will not have any radioactivity.

4. Both strands of one daughter molecule will be radioactive and the other daughter molecule will not have any radioactivity.

5. None of the above answers are correct.

Reference no: EM1386175

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