14. DNA Synthesis
Meselson-Stahl Experiment
1:44 minutes
Problem 9a
Textbook Question
Textbook QuestionIn the late 1950s, Herbert Taylor grew bean root-tip cells in a solution of radioactive thymidine (a precursor to one of the deoxyribonucleotides in DNA) and allowed them to undergo one round of DNA replication. He then transferred the cells to a solution without radioactive thymidine, allowed them to replicate again, and examined their chromosomes for the presence of radioactivity. His results are shown in the following figure, where red indicates a radioactive chromatid. (b) What would the results of Taylor's experiment be if eukaryotes used a conservative mode of DNA replication?
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