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Question

Mutagenic effects of x-rays were discovered by

A
T. H. Morgan
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B
H. J. Muller
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C
G. W. Beadle
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D
Hugo de Vries
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Solution

The correct option is B H. J. Muller
Herman Joseph Muller was an American geneticist, educator and Nobel laureate best known for his work on the physiological and genetic effects of radiation (X-ray mutagenesis). He was the first person who invented mutagenic effect of X-rays using Drosophila mutants. The mutagens brings a sudden heritable change in the genome. Thus, the correct answer is option B.

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