What did Muller use to prove that DNA change was not always random?
Crystallography
Chemical mutagens
Statistical analysis
Radioactive markers
Answer
Radioactive markers were used by Muller to demonstrate that DNA changes were not always random. His experiments with fruit flies subjected to X-rays revealed specific patterns in the occurrence of mutations, indicating a non-random nature of DNA alterations induced by radiation. This finding challenged the prevailing notion of random genetic changes and paved the way for further research into the mechanisms of targeted genetic modifications.
The Extraordinary Life of Hermann Joseph Muller: An Immersive Quiz on the Pioneering American Biologist
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